Home / 667,298.55-1,000,472.36-312,118.95

Finding the Fourth Proportional to 667,298.55, 1,000,472.36 and 312,118.95

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Solution

The fourth proportional to 667,298.55, 1,000,472.36 and 312,118.95 is: 467,956.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,298.55 : 1,000,472.36 = 312,118.95 : x
  2. Step 2: Convert to fraction form
    667,298.55/1,000,472.36 = 312,118.95/x
  3. Step 3: Cross multiply
    667,298.55x = 1,000,472.36 × 312,118.95
  4. Step 4: Simplify right side
    667,298.55x = 312,266,380,946.63
  5. Step 5: Solve for x
    x = 312,266,380,946.63/667,298.55
  6. Step 6: Final answer
    x = 467,956.03

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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.