Home / 830,611.56-1,146,244.76-448,638.33

Finding the Fourth Proportional to 830,611.56, 1,146,244.76 and 448,638.33

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Solution

The fourth proportional to 830,611.56, 1,146,244.76 and 448,638.33 is: 619,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,611.56 : 1,146,244.76 = 448,638.33 : x
  2. Step 2: Convert to fraction form
    830,611.56/1,146,244.76 = 448,638.33/x
  3. Step 3: Cross multiply
    830,611.56x = 1,146,244.76 × 448,638.33
  4. Step 4: Simplify right side
    830,611.56x = 514,249,332,654.46
  5. Step 5: Solve for x
    x = 514,249,332,654.46/830,611.56
  6. Step 6: Final answer
    x = 619,121.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.