Home / 702,000.30-1,053,000.45-403,401.90

Finding the Fourth Proportional to 702,000.30, 1,053,000.45 and 403,401.90

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Solution

The fourth proportional to 702,000.30, 1,053,000.45 and 403,401.90 is: 605,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,000.30 : 1,053,000.45 = 403,401.90 : x
  2. Step 2: Convert to fraction form
    702,000.30/1,053,000.45 = 403,401.90/x
  3. Step 3: Cross multiply
    702,000.30x = 1,053,000.45 × 403,401.90
  4. Step 4: Simplify right side
    702,000.30x = 424,782,382,230.86
  5. Step 5: Solve for x
    x = 424,782,382,230.86/702,000.30
  6. Step 6: Final answer
    x = 605,102.85

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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.