Home / 718,311.70-1,077,467.55-657,658.90

Finding the Fourth Proportional to 718,311.70, 1,077,467.55 and 657,658.90

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Solution

The fourth proportional to 718,311.70, 1,077,467.55 and 657,658.90 is: 986,488.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,311.70 : 1,077,467.55 = 657,658.90 : x
  2. Step 2: Convert to fraction form
    718,311.70/1,077,467.55 = 657,658.90/x
  3. Step 3: Cross multiply
    718,311.70x = 1,077,467.55 × 657,658.90
  4. Step 4: Simplify right side
    718,311.70x = 708,606,123,718.70
  5. Step 5: Solve for x
    x = 708,606,123,718.70/718,311.70
  6. Step 6: Final answer
    x = 986,488.35

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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.