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Finding the Fourth Proportional to 545,808.17, 817,807.29 and 331,929.19

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Solution

The fourth proportional to 545,808.17, 817,807.29 and 331,929.19 is: 497,343.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,808.17 : 817,807.29 = 331,929.19 : x
  2. Step 2: Convert to fraction form
    545,808.17/817,807.29 = 331,929.19/x
  3. Step 3: Cross multiply
    545,808.17x = 817,807.29 × 331,929.19
  4. Step 4: Simplify right side
    545,808.17x = 271,454,111,123.32
  5. Step 5: Solve for x
    x = 271,454,111,123.32/545,808.17
  6. Step 6: Final answer
    x = 497,343.43

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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.