Home / 727,710.72-1,090,359.30-442,538.64

Finding the Fourth Proportional to 727,710.72, 1,090,359.30 and 442,538.64

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Solution

The fourth proportional to 727,710.72, 1,090,359.30 and 442,538.64 is: 663,074.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,710.72 : 1,090,359.30 = 442,538.64 : x
  2. Step 2: Convert to fraction form
    727,710.72/1,090,359.30 = 442,538.64/x
  3. Step 3: Cross multiply
    727,710.72x = 1,090,359.30 × 442,538.64
  4. Step 4: Simplify right side
    727,710.72x = 482,526,121,733.35
  5. Step 5: Solve for x
    x = 482,526,121,733.35/727,710.72
  6. Step 6: Final answer
    x = 663,074.09

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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.