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Finding the Fourth Proportional to 723,562.47, 998,973.61 and 465,559.38

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Solution

The fourth proportional to 723,562.47, 998,973.61 and 465,559.38 is: 642,766.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,562.47 : 998,973.61 = 465,559.38 : x
  2. Step 2: Convert to fraction form
    723,562.47/998,973.61 = 465,559.38/x
  3. Step 3: Cross multiply
    723,562.47x = 998,973.61 × 465,559.38
  4. Step 4: Simplify right side
    723,562.47x = 465,081,533,344.06
  5. Step 5: Solve for x
    x = 465,081,533,344.06/723,562.47
  6. Step 6: Final answer
    x = 642,766.25

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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.