Home / 718,053.77-990,909.24-395,764.04

Finding the Fourth Proportional to 718,053.77, 990,909.24 and 395,764.04

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Solution

The fourth proportional to 718,053.77, 990,909.24 and 395,764.04 is: 546,151.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,053.77 : 990,909.24 = 395,764.04 : x
  2. Step 2: Convert to fraction form
    718,053.77/990,909.24 = 395,764.04/x
  3. Step 3: Cross multiply
    718,053.77x = 990,909.24 × 395,764.04
  4. Step 4: Simplify right side
    718,053.77x = 392,166,244,095.73
  5. Step 5: Solve for x
    x = 392,166,244,095.73/718,053.77
  6. Step 6: Final answer
    x = 546,151.64

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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.