Home / 1,225,425.40-1,838,138.10-941,990.20

Finding the Fourth Proportional to 1,225,425.40, 1,838,138.10 and 941,990.20

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Solution

The fourth proportional to 1,225,425.40, 1,838,138.10 and 941,990.20 is: 1,412,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,425.40 : 1,838,138.10 = 941,990.20 : x
  2. Step 2: Convert to fraction form
    1,225,425.40/1,838,138.10 = 941,990.20/x
  3. Step 3: Cross multiply
    1,225,425.40x = 1,838,138.10 × 941,990.20
  4. Step 4: Simplify right side
    1,225,425.40x = 1,731,508,076,446.62
  5. Step 5: Solve for x
    x = 1,731,508,076,446.62/1,225,425.40
  6. Step 6: Final answer
    x = 1,412,985.30

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Double scale
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Similar ratio
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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.