Home / 1,437,218.40-2,155,459.88-426,103.92

Finding the Fourth Proportional to 1,437,218.40, 2,155,459.88 and 426,103.92

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Solution

The fourth proportional to 1,437,218.40, 2,155,459.88 and 426,103.92 is: 639,046.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,218.40 : 2,155,459.88 = 426,103.92 : x
  2. Step 2: Convert to fraction form
    1,437,218.40/2,155,459.88 = 426,103.92/x
  3. Step 3: Cross multiply
    1,437,218.40x = 2,155,459.88 × 426,103.92
  4. Step 4: Simplify right side
    1,437,218.40x = 918,449,904,270.73
  5. Step 5: Solve for x
    x = 918,449,904,270.73/1,437,218.40
  6. Step 6: Final answer
    x = 639,046.86

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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.