Home / 1,078,687.60-1,618,031.40-742,764.40

Finding the Fourth Proportional to 1,078,687.60, 1,618,031.40 and 742,764.40

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Solution

The fourth proportional to 1,078,687.60, 1,618,031.40 and 742,764.40 is: 1,114,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,687.60 : 1,618,031.40 = 742,764.40 : x
  2. Step 2: Convert to fraction form
    1,078,687.60/1,618,031.40 = 742,764.40/x
  3. Step 3: Cross multiply
    1,078,687.60x = 1,618,031.40 × 742,764.40
  4. Step 4: Simplify right side
    1,078,687.60x = 1,201,816,122,002.16
  5. Step 5: Solve for x
    x = 1,201,816,122,002.16/1,078,687.60
  6. Step 6: Final answer
    x = 1,114,146.60

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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.