Home / 715,291.25-987,975.19-534,803.61

Finding the Fourth Proportional to 715,291.25, 987,975.19 and 534,803.61

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Solution

The fourth proportional to 715,291.25, 987,975.19 and 534,803.61 is: 738,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,291.25 : 987,975.19 = 534,803.61 : x
  2. Step 2: Convert to fraction form
    715,291.25/987,975.19 = 534,803.61/x
  3. Step 3: Cross multiply
    715,291.25x = 987,975.19 × 534,803.61
  4. Step 4: Simplify right side
    715,291.25x = 528,372,692,735.67
  5. Step 5: Solve for x
    x = 528,372,692,735.67/715,291.25
  6. Step 6: Final answer
    x = 738,681.89

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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.