Home / 747,712.90-1,121,569.35-665,044.30

Finding the Fourth Proportional to 747,712.90, 1,121,569.35 and 665,044.30

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Solution

The fourth proportional to 747,712.90, 1,121,569.35 and 665,044.30 is: 997,566.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,712.90 : 1,121,569.35 = 665,044.30 : x
  2. Step 2: Convert to fraction form
    747,712.90/1,121,569.35 = 665,044.30/x
  3. Step 3: Cross multiply
    747,712.90x = 1,121,569.35 × 665,044.30
  4. Step 4: Simplify right side
    747,712.90x = 745,893,303,272.21
  5. Step 5: Solve for x
    x = 745,893,303,272.21/747,712.90
  6. Step 6: Final answer
    x = 997,566.45

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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.