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Finding the Fourth Proportional to 480,904.10, 721,356.15 and 460,427.30

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Solution

The fourth proportional to 480,904.10, 721,356.15 and 460,427.30 is: 690,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,904.10 : 721,356.15 = 460,427.30 : x
  2. Step 2: Convert to fraction form
    480,904.10/721,356.15 = 460,427.30/x
  3. Step 3: Cross multiply
    480,904.10x = 721,356.15 × 460,427.30
  4. Step 4: Simplify right side
    480,904.10x = 332,132,064,482.90
  5. Step 5: Solve for x
    x = 332,132,064,482.90/480,904.10
  6. Step 6: Final answer
    x = 690,640.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.