Home / 1,066,703.72-1,472,066.90-722,644.88

Finding the Fourth Proportional to 1,066,703.72, 1,472,066.90 and 722,644.88

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Solution

The fourth proportional to 1,066,703.72, 1,472,066.90 and 722,644.88 is: 997,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,703.72 : 1,472,066.90 = 722,644.88 : x
  2. Step 2: Convert to fraction form
    1,066,703.72/1,472,066.90 = 722,644.88/x
  3. Step 3: Cross multiply
    1,066,703.72x = 1,472,066.90 × 722,644.88
  4. Step 4: Simplify right side
    1,066,703.72x = 1,063,781,608,302.47
  5. Step 5: Solve for x
    x = 1,063,781,608,302.47/1,066,703.72
  6. Step 6: Final answer
    x = 997,260.62

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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.