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Finding the Fourth Proportional to 571,715.60, 857,397.83 and 395,355.92

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Solution

The fourth proportional to 571,715.60, 857,397.83 and 395,355.92 is: 592,912.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,715.60 : 857,397.83 = 395,355.92 : x
  2. Step 2: Convert to fraction form
    571,715.60/857,397.83 = 395,355.92/x
  3. Step 3: Cross multiply
    571,715.60x = 857,397.83 × 395,355.92
  4. Step 4: Simplify right side
    571,715.60x = 338,977,301,621.89
  5. Step 5: Solve for x
    x = 338,977,301,621.89/571,715.60
  6. Step 6: Final answer
    x = 592,912.46

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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.