Home / 1,246,278.80-1,865,117.40-748,000.40

Finding the Fourth Proportional to 1,246,278.80, 1,865,117.40 and 748,000.40

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Solution

The fourth proportional to 1,246,278.80, 1,865,117.40 and 748,000.40 is: 1,119,419.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,278.80 : 1,865,117.40 = 748,000.40 : x
  2. Step 2: Convert to fraction form
    1,246,278.80/1,865,117.40 = 748,000.40/x
  3. Step 3: Cross multiply
    1,246,278.80x = 1,865,117.40 × 748,000.40
  4. Step 4: Simplify right side
    1,246,278.80x = 1,395,108,561,246.96
  5. Step 5: Solve for x
    x = 1,395,108,561,246.96/1,246,278.80
  6. Step 6: Final answer
    x = 1,119,419.32

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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.