Home / 865,830.65-1,194,742.78-478,593.77

Finding the Fourth Proportional to 865,830.65, 1,194,742.78 and 478,593.77

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Solution

The fourth proportional to 865,830.65, 1,194,742.78 and 478,593.77 is: 660,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,830.65 : 1,194,742.78 = 478,593.77 : x
  2. Step 2: Convert to fraction form
    865,830.65/1,194,742.78 = 478,593.77/x
  3. Step 3: Cross multiply
    865,830.65x = 1,194,742.78 × 478,593.77
  4. Step 4: Simplify right side
    865,830.65x = 571,796,451,260.48
  5. Step 5: Solve for x
    x = 571,796,451,260.48/865,830.65
  6. Step 6: Final answer
    x = 660,402.18

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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.