Home / 989,031.28-1,474,659.51-904,580.89

Finding the Fourth Proportional to 989,031.28, 1,474,659.51 and 904,580.89

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Solution

The fourth proportional to 989,031.28, 1,474,659.51 and 904,580.89 is: 1,348,742.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,031.28 : 1,474,659.51 = 904,580.89 : x
  2. Step 2: Convert to fraction form
    989,031.28/1,474,659.51 = 904,580.89/x
  3. Step 3: Cross multiply
    989,031.28x = 1,474,659.51 × 904,580.89
  4. Step 4: Simplify right side
    989,031.28x = 1,333,948,812,002.76
  5. Step 5: Solve for x
    x = 1,333,948,812,002.76/989,031.28
  6. Step 6: Final answer
    x = 1,348,742.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.