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Finding the Fourth Proportional to 754,762.11, 1,132,668.04 and 487,860.63

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Solution

The fourth proportional to 754,762.11, 1,132,668.04 and 487,860.63 is: 732,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,762.11 : 1,132,668.04 = 487,860.63 : x
  2. Step 2: Convert to fraction form
    754,762.11/1,132,668.04 = 487,860.63/x
  3. Step 3: Cross multiply
    754,762.11x = 1,132,668.04 × 487,860.63
  4. Step 4: Simplify right side
    754,762.11x = 552,584,143,575.27
  5. Step 5: Solve for x
    x = 552,584,143,575.27/754,762.11
  6. Step 6: Final answer
    x = 732,130.21

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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.