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Finding the Fourth Proportional to 510,585.90, 704,580.86 and 281,098.32

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Solution

The fourth proportional to 510,585.90, 704,580.86 and 281,098.32 is: 387,900.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,585.90 : 704,580.86 = 281,098.32 : x
  2. Step 2: Convert to fraction form
    510,585.90/704,580.86 = 281,098.32/x
  3. Step 3: Cross multiply
    510,585.90x = 704,580.86 × 281,098.32
  4. Step 4: Simplify right side
    510,585.90x = 198,056,496,050.16
  5. Step 5: Solve for x
    x = 198,056,496,050.16/510,585.90
  6. Step 6: Final answer
    x = 387,900.44

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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.