Home / 830,438.35-1,146,004.92-448,465.12

Finding the Fourth Proportional to 830,438.35, 1,146,004.92 and 448,465.12

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Solution

The fourth proportional to 830,438.35, 1,146,004.92 and 448,465.12 is: 618,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,438.35 : 1,146,004.92 = 448,465.12 : x
  2. Step 2: Convert to fraction form
    830,438.35/1,146,004.92 = 448,465.12/x
  3. Step 3: Cross multiply
    830,438.35x = 1,146,004.92 × 448,465.12
  4. Step 4: Simplify right side
    830,438.35x = 513,943,233,968.39
  5. Step 5: Solve for x
    x = 513,943,233,968.39/830,438.35
  6. Step 6: Final answer
    x = 618,881.86

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Double scale
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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.