Home / 670,638.66-1,006,401.12-315,754.14

Finding the Fourth Proportional to 670,638.66, 1,006,401.12 and 315,754.14

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Solution

The fourth proportional to 670,638.66, 1,006,401.12 and 315,754.14 is: 473,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,638.66 : 1,006,401.12 = 315,754.14 : x
  2. Step 2: Convert to fraction form
    670,638.66/1,006,401.12 = 315,754.14/x
  3. Step 3: Cross multiply
    670,638.66x = 1,006,401.12 × 315,754.14
  4. Step 4: Simplify right side
    670,638.66x = 317,775,320,140.64
  5. Step 5: Solve for x
    x = 317,775,320,140.64/670,638.66
  6. Step 6: Final answer
    x = 473,839.85

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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.