Home / 920,402.60-1,380,040.14-358,781

Finding the Fourth Proportional to 920,402.60, 1,380,040.14 and 358,781

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Solution

The fourth proportional to 920,402.60, 1,380,040.14 and 358,781 is: 537,951.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,402.60 : 1,380,040.14 = 358,781 : x
  2. Step 2: Convert to fraction form
    920,402.60/1,380,040.14 = 358,781/x
  3. Step 3: Cross multiply
    920,402.60x = 1,380,040.14 × 358,781
  4. Step 4: Simplify right side
    920,402.60x = 495,132,181,469.34
  5. Step 5: Solve for x
    x = 495,132,181,469.34/920,402.60
  6. Step 6: Final answer
    x = 537,951.74

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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.