Home / 670,639.66-1,006,402.62-315,755.14

Finding the Fourth Proportional to 670,639.66, 1,006,402.62 and 315,755.14

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Solution

The fourth proportional to 670,639.66, 1,006,402.62 and 315,755.14 is: 473,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,639.66 : 1,006,402.62 = 315,755.14 : x
  2. Step 2: Convert to fraction form
    670,639.66/1,006,402.62 = 315,755.14/x
  3. Step 3: Cross multiply
    670,639.66x = 1,006,402.62 × 315,755.14
  4. Step 4: Simplify right side
    670,639.66x = 317,776,800,174.47
  5. Step 5: Solve for x
    x = 317,776,800,174.47/670,639.66
  6. Step 6: Final answer
    x = 473,841.35

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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.