Home / 830,679.56-1,146,338.30-448,706.51

Finding the Fourth Proportional to 830,679.56, 1,146,338.30 and 448,706.51

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Solution

The fourth proportional to 830,679.56, 1,146,338.30 and 448,706.51 is: 619,215.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,679.56 : 1,146,338.30 = 448,706.51 : x
  2. Step 2: Convert to fraction form
    830,679.56/1,146,338.30 = 448,706.51/x
  3. Step 3: Cross multiply
    830,679.56x = 1,146,338.30 × 448,706.51
  4. Step 4: Simplify right side
    830,679.56x = 514,369,457,872.33
  5. Step 5: Solve for x
    x = 514,369,457,872.33/830,679.56
  6. Step 6: Final answer
    x = 619,215.26

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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.