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Finding the Fourth Proportional to 656,745.40, 985,118.10 and 376,031.80

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Solution

The fourth proportional to 656,745.40, 985,118.10 and 376,031.80 is: 564,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,745.40 : 985,118.10 = 376,031.80 : x
  2. Step 2: Convert to fraction form
    656,745.40/985,118.10 = 376,031.80/x
  3. Step 3: Cross multiply
    656,745.40x = 985,118.10 × 376,031.80
  4. Step 4: Simplify right side
    656,745.40x = 370,435,732,355.58
  5. Step 5: Solve for x
    x = 370,435,732,355.58/656,745.40
  6. Step 6: Final answer
    x = 564,047.70

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Similar ratio
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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.