Home / 753,114.28-1,129,432.14-247,558.60

Finding the Fourth Proportional to 753,114.28, 1,129,432.14 and 247,558.60

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Solution

The fourth proportional to 753,114.28, 1,129,432.14 and 247,558.60 is: 371,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,114.28 : 1,129,432.14 = 247,558.60 : x
  2. Step 2: Convert to fraction form
    753,114.28/1,129,432.14 = 247,558.60/x
  3. Step 3: Cross multiply
    753,114.28x = 1,129,432.14 × 247,558.60
  4. Step 4: Simplify right side
    753,114.28x = 279,600,639,373.40
  5. Step 5: Solve for x
    x = 279,600,639,373.40/753,114.28
  6. Step 6: Final answer
    x = 371,259.25

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Double scale
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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.