Home / 485,599.57-670,353.04-345,988.17

Finding the Fourth Proportional to 485,599.57, 670,353.04 and 345,988.17

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Solution

The fourth proportional to 485,599.57, 670,353.04 and 345,988.17 is: 477,624.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,599.57 : 670,353.04 = 345,988.17 : x
  2. Step 2: Convert to fraction form
    485,599.57/670,353.04 = 345,988.17/x
  3. Step 3: Cross multiply
    485,599.57x = 670,353.04 × 345,988.17
  4. Step 4: Simplify right side
    485,599.57x = 231,934,221,996.02
  5. Step 5: Solve for x
    x = 231,934,221,996.02/485,599.57
  6. Step 6: Final answer
    x = 477,624.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.