Home / 442,823.90-664,235.85-406,082.30

Finding the Fourth Proportional to 442,823.90, 664,235.85 and 406,082.30

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Solution

The fourth proportional to 442,823.90, 664,235.85 and 406,082.30 is: 609,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,823.90 : 664,235.85 = 406,082.30 : x
  2. Step 2: Convert to fraction form
    442,823.90/664,235.85 = 406,082.30/x
  3. Step 3: Cross multiply
    442,823.90x = 664,235.85 × 406,082.30
  4. Step 4: Simplify right side
    442,823.90x = 269,734,421,710.46
  5. Step 5: Solve for x
    x = 269,734,421,710.46/442,823.90
  6. Step 6: Final answer
    x = 609,123.45

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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.