Home / 487,815.14-731,302.22-188,505.74

Finding the Fourth Proportional to 487,815.14, 731,302.22 and 188,505.74

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Solution

The fourth proportional to 487,815.14, 731,302.22 and 188,505.74 is: 282,596.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,815.14 : 731,302.22 = 188,505.74 : x
  2. Step 2: Convert to fraction form
    487,815.14/731,302.22 = 188,505.74/x
  3. Step 3: Cross multiply
    487,815.14x = 731,302.22 × 188,505.74
  4. Step 4: Simplify right side
    487,815.14x = 137,854,668,444.26
  5. Step 5: Solve for x
    x = 137,854,668,444.26/487,815.14
  6. Step 6: Final answer
    x = 282,596.12

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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.