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Finding the Fourth Proportional to 571,475.79, 857,038.68 and 395,116.11

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Solution

The fourth proportional to 571,475.79, 857,038.68 and 395,116.11 is: 592,553.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,475.79 : 857,038.68 = 395,116.11 : x
  2. Step 2: Convert to fraction form
    571,475.79/857,038.68 = 395,116.11/x
  3. Step 3: Cross multiply
    571,475.79x = 857,038.68 × 395,116.11
  4. Step 4: Simplify right side
    571,475.79x = 338,629,789,361.14
  5. Step 5: Solve for x
    x = 338,629,789,361.14/571,475.79
  6. Step 6: Final answer
    x = 592,553.17

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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.