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Finding the Fourth Proportional to 539,703.88, 745,452.66 and 404,343.16

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Solution

The fourth proportional to 539,703.88, 745,452.66 and 404,343.16 is: 558,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,703.88 : 745,452.66 = 404,343.16 : x
  2. Step 2: Convert to fraction form
    539,703.88/745,452.66 = 404,343.16/x
  3. Step 3: Cross multiply
    539,703.88x = 745,452.66 × 404,343.16
  4. Step 4: Simplify right side
    539,703.88x = 301,418,684,174.81
  5. Step 5: Solve for x
    x = 301,418,684,174.81/539,703.88
  6. Step 6: Final answer
    x = 558,489.01

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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.