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Finding the Fourth Proportional to 437,540.40, 614,422.80 and 437,540.40

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Solution

The fourth proportional to 437,540.40, 614,422.80 and 437,540.40 is: 614,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,540.40 : 614,422.80 = 437,540.40 : x
  2. Step 2: Convert to fraction form
    437,540.40/614,422.80 = 437,540.40/x
  3. Step 3: Cross multiply
    437,540.40x = 614,422.80 × 437,540.40
  4. Step 4: Simplify right side
    437,540.40x = 268,834,797,681.12
  5. Step 5: Solve for x
    x = 268,834,797,681.12/437,540.40
  6. Step 6: Final answer
    x = 614,422.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.