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Finding the Fourth Proportional to 547,325.76, 820,988.64 and 437,217.60

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Solution

The fourth proportional to 547,325.76, 820,988.64 and 437,217.60 is: 655,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,325.76 : 820,988.64 = 437,217.60 : x
  2. Step 2: Convert to fraction form
    547,325.76/820,988.64 = 437,217.60/x
  3. Step 3: Cross multiply
    547,325.76x = 820,988.64 × 437,217.60
  4. Step 4: Simplify right side
    547,325.76x = 358,950,682,808.06
  5. Step 5: Solve for x
    x = 358,950,682,808.06/547,325.76
  6. Step 6: Final answer
    x = 655,826.40

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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.