Home / 672,000.30-1,008,000.45-406,061.10

Finding the Fourth Proportional to 672,000.30, 1,008,000.45 and 406,061.10

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Solution

The fourth proportional to 672,000.30, 1,008,000.45 and 406,061.10 is: 609,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,000.30 : 1,008,000.45 = 406,061.10 : x
  2. Step 2: Convert to fraction form
    672,000.30/1,008,000.45 = 406,061.10/x
  3. Step 3: Cross multiply
    672,000.30x = 1,008,000.45 × 406,061.10
  4. Step 4: Simplify right side
    672,000.30x = 409,309,771,527.50
  5. Step 5: Solve for x
    x = 409,309,771,527.50/672,000.30
  6. Step 6: Final answer
    x = 609,091.65

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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.