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Finding the Fourth Proportional to 527,821.92, 728,731.08 and 346,854.96

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Solution

The fourth proportional to 527,821.92, 728,731.08 and 346,854.96 is: 478,881.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,821.92 : 728,731.08 = 346,854.96 : x
  2. Step 2: Convert to fraction form
    527,821.92/728,731.08 = 346,854.96/x
  3. Step 3: Cross multiply
    527,821.92x = 728,731.08 × 346,854.96
  4. Step 4: Simplify right side
    527,821.92x = 252,763,989,604.16
  5. Step 5: Solve for x
    x = 252,763,989,604.16/527,821.92
  6. Step 6: Final answer
    x = 478,881.19

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1.5x scale

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.