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Finding the Fourth Proportional to 723,681.42, 998,747.91 and 417,767.82

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Solution

The fourth proportional to 723,681.42, 998,747.91 and 417,767.82 is: 576,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,681.42 : 998,747.91 = 417,767.82 : x
  2. Step 2: Convert to fraction form
    723,681.42/998,747.91 = 417,767.82/x
  3. Step 3: Cross multiply
    723,681.42x = 998,747.91 × 417,767.82
  4. Step 4: Simplify right side
    723,681.42x = 417,244,737,090.26
  5. Step 5: Solve for x
    x = 417,244,737,090.26/723,681.42
  6. Step 6: Final answer
    x = 576,558.59

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1.5x scale

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.