Home / 721,247.12-994,985.80-466,680.40

Finding the Fourth Proportional to 721,247.12, 994,985.80 and 466,680.40

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Solution

The fourth proportional to 721,247.12, 994,985.80 and 466,680.40 is: 643,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,247.12 : 994,985.80 = 466,680.40 : x
  2. Step 2: Convert to fraction form
    721,247.12/994,985.80 = 466,680.40/x
  3. Step 3: Cross multiply
    721,247.12x = 994,985.80 × 466,680.40
  4. Step 4: Simplify right side
    721,247.12x = 464,340,371,138.32
  5. Step 5: Solve for x
    x = 464,340,371,138.32/721,247.12
  6. Step 6: Final answer
    x = 643,802.05

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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.