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Finding the Fourth Proportional to 559,257.20, 837,136.20 and 440,284.40

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Solution

The fourth proportional to 559,257.20, 837,136.20 and 440,284.40 is: 659,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,257.20 : 837,136.20 = 440,284.40 : x
  2. Step 2: Convert to fraction form
    559,257.20/837,136.20 = 440,284.40/x
  3. Step 3: Cross multiply
    559,257.20x = 837,136.20 × 440,284.40
  4. Step 4: Simplify right side
    559,257.20x = 368,578,009,535.28
  5. Step 5: Solve for x
    x = 368,578,009,535.28/559,257.20
  6. Step 6: Final answer
    x = 659,049.20

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Similar ratio
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1.5x scale

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.