Home / 916,934.20-1,375,401.30-618,335.80

Finding the Fourth Proportional to 916,934.20, 1,375,401.30 and 618,335.80

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Solution

The fourth proportional to 916,934.20, 1,375,401.30 and 618,335.80 is: 927,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,934.20 : 1,375,401.30 = 618,335.80 : x
  2. Step 2: Convert to fraction form
    916,934.20/1,375,401.30 = 618,335.80/x
  3. Step 3: Cross multiply
    916,934.20x = 1,375,401.30 × 618,335.80
  4. Step 4: Simplify right side
    916,934.20x = 850,459,863,156.54
  5. Step 5: Solve for x
    x = 850,459,863,156.54/916,934.20
  6. Step 6: Final answer
    x = 927,503.70

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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.