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Finding the Fourth Proportional to 574,868.10, 862,302.15 and 518,880.90

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Solution

The fourth proportional to 574,868.10, 862,302.15 and 518,880.90 is: 778,321.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,868.10 : 862,302.15 = 518,880.90 : x
  2. Step 2: Convert to fraction form
    574,868.10/862,302.15 = 518,880.90/x
  3. Step 3: Cross multiply
    574,868.10x = 862,302.15 × 518,880.90
  4. Step 4: Simplify right side
    574,868.10x = 447,432,115,663.94
  5. Step 5: Solve for x
    x = 447,432,115,663.94/574,868.10
  6. Step 6: Final answer
    x = 778,321.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.