Home / 870,818.85-1,306,381.32-397,552.05

Finding the Fourth Proportional to 870,818.85, 1,306,381.32 and 397,552.05

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Solution

The fourth proportional to 870,818.85, 1,306,381.32 and 397,552.05 is: 596,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,818.85 : 1,306,381.32 = 397,552.05 : x
  2. Step 2: Convert to fraction form
    870,818.85/1,306,381.32 = 397,552.05/x
  3. Step 3: Cross multiply
    870,818.85x = 1,306,381.32 × 397,552.05
  4. Step 4: Simplify right side
    870,818.85x = 519,354,571,847.71
  5. Step 5: Solve for x
    x = 519,354,571,847.71/870,818.85
  6. Step 6: Final answer
    x = 596,397.94

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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.