Home / 399,110.20-598,665.30-383,363.80

Finding the Fourth Proportional to 399,110.20, 598,665.30 and 383,363.80

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Solution

The fourth proportional to 399,110.20, 598,665.30 and 383,363.80 is: 575,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,110.20 : 598,665.30 = 383,363.80 : x
  2. Step 2: Convert to fraction form
    399,110.20/598,665.30 = 383,363.80/x
  3. Step 3: Cross multiply
    399,110.20x = 598,665.30 × 383,363.80
  4. Step 4: Simplify right side
    399,110.20x = 229,506,604,336.14
  5. Step 5: Solve for x
    x = 229,506,604,336.14/399,110.20
  6. Step 6: Final answer
    x = 575,045.70

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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.