Home / 712,890.88-1,071,008.64-672,539.92

Finding the Fourth Proportional to 712,890.88, 1,071,008.64 and 672,539.92

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Solution

The fourth proportional to 712,890.88, 1,071,008.64 and 672,539.92 is: 1,010,387.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,890.88 : 1,071,008.64 = 672,539.92 : x
  2. Step 2: Convert to fraction form
    712,890.88/1,071,008.64 = 672,539.92/x
  3. Step 3: Cross multiply
    712,890.88x = 1,071,008.64 × 672,539.92
  4. Step 4: Simplify right side
    712,890.88x = 720,296,065,064.91
  5. Step 5: Solve for x
    x = 720,296,065,064.91/712,890.88
  6. Step 6: Final answer
    x = 1,010,387.54

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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.