Home / 920,531.20-1,381,005.98-280,892.16

Finding the Fourth Proportional to 920,531.20, 1,381,005.98 and 280,892.16

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Solution

The fourth proportional to 920,531.20, 1,381,005.98 and 280,892.16 is: 421,402.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,531.20 : 1,381,005.98 = 280,892.16 : x
  2. Step 2: Convert to fraction form
    920,531.20/1,381,005.98 = 280,892.16/x
  3. Step 3: Cross multiply
    920,531.20x = 1,381,005.98 × 280,892.16
  4. Step 4: Simplify right side
    920,531.20x = 387,913,745,790.09
  5. Step 5: Solve for x
    x = 387,913,745,790.09/920,531.20
  6. Step 6: Final answer
    x = 421,402.06

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1.5x scale

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.