Home / 475,416.90-656,074.04-257,631.61

Finding the Fourth Proportional to 475,416.90, 656,074.04 and 257,631.61

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Solution

The fourth proportional to 475,416.90, 656,074.04 and 257,631.61 is: 355,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,416.90 : 656,074.04 = 257,631.61 : x
  2. Step 2: Convert to fraction form
    475,416.90/656,074.04 = 257,631.61/x
  3. Step 3: Cross multiply
    475,416.90x = 656,074.04 × 257,631.61
  4. Step 4: Simplify right side
    475,416.90x = 169,025,411,204.40
  5. Step 5: Solve for x
    x = 169,025,411,204.40/475,416.90
  6. Step 6: Final answer
    x = 355,530.93

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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.