Home / 646,288.13-969,432.45-645,354.22

Finding the Fourth Proportional to 646,288.13, 969,432.45 and 645,354.22

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Solution

The fourth proportional to 646,288.13, 969,432.45 and 645,354.22 is: 968,031.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,288.13 : 969,432.45 = 645,354.22 : x
  2. Step 2: Convert to fraction form
    646,288.13/969,432.45 = 645,354.22/x
  3. Step 3: Cross multiply
    646,288.13x = 969,432.45 × 645,354.22
  4. Step 4: Simplify right side
    646,288.13x = 625,627,319,586.47
  5. Step 5: Solve for x
    x = 625,627,319,586.47/646,288.13
  6. Step 6: Final answer
    x = 968,031.58

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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.