Home / 1,982,542-2,975,308.56-918,330.72

Finding the Fourth Proportional to 1,982,542, 2,975,308.56 and 918,330.72

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Solution

The fourth proportional to 1,982,542, 2,975,308.56 and 918,330.72 is: 1,378,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982,542 : 2,975,308.56 = 918,330.72 : x
  2. Step 2: Convert to fraction form
    1,982,542/2,975,308.56 = 918,330.72/x
  3. Step 3: Cross multiply
    1,982,542x = 2,975,308.56 × 918,330.72
  4. Step 4: Simplify right side
    1,982,542x = 2,732,317,252,126.96
  5. Step 5: Solve for x
    x = 2,732,317,252,126.96/1,982,542
  6. Step 6: Final answer
    x = 1,378,188.84

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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.