Home / 658,909.40-988,364.10-185,588.60

Finding the Fourth Proportional to 658,909.40, 988,364.10 and 185,588.60

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Solution

The fourth proportional to 658,909.40, 988,364.10 and 185,588.60 is: 278,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,909.40 : 988,364.10 = 185,588.60 : x
  2. Step 2: Convert to fraction form
    658,909.40/988,364.10 = 185,588.60/x
  3. Step 3: Cross multiply
    658,909.40x = 988,364.10 × 185,588.60
  4. Step 4: Simplify right side
    658,909.40x = 183,429,109,609.26
  5. Step 5: Solve for x
    x = 183,429,109,609.26/658,909.40
  6. Step 6: Final answer
    x = 278,382.90

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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.