Home / 718,776.64-1,077,248.96-381,978.64

Finding the Fourth Proportional to 718,776.64, 1,077,248.96 and 381,978.64

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Solution

The fourth proportional to 718,776.64, 1,077,248.96 and 381,978.64 is: 572,481.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,776.64 : 1,077,248.96 = 381,978.64 : x
  2. Step 2: Convert to fraction form
    718,776.64/1,077,248.96 = 381,978.64/x
  3. Step 3: Cross multiply
    718,776.64x = 1,077,248.96 × 381,978.64
  4. Step 4: Simplify right side
    718,776.64x = 411,486,092,682.21
  5. Step 5: Solve for x
    x = 411,486,092,682.21/718,776.64
  6. Step 6: Final answer
    x = 572,481.17

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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.