Home / 939,084.20-1,408,712.70-378,002.60

Finding the Fourth Proportional to 939,084.20, 1,408,712.70 and 378,002.60

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Solution

The fourth proportional to 939,084.20, 1,408,712.70 and 378,002.60 is: 567,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,084.20 : 1,408,712.70 = 378,002.60 : x
  2. Step 2: Convert to fraction form
    939,084.20/1,408,712.70 = 378,002.60/x
  3. Step 3: Cross multiply
    939,084.20x = 1,408,712.70 × 378,002.60
  4. Step 4: Simplify right side
    939,084.20x = 532,497,063,253.02
  5. Step 5: Solve for x
    x = 532,497,063,253.02/939,084.20
  6. Step 6: Final answer
    x = 567,038.68

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Double scale
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Similar ratio
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1.5x scale

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.