Home / 646,288.04-969,432.30-645,354.12

Finding the Fourth Proportional to 646,288.04, 969,432.30 and 645,354.12

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Solution

The fourth proportional to 646,288.04, 969,432.30 and 645,354.12 is: 968,031.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,288.04 : 969,432.30 = 645,354.12 : x
  2. Step 2: Convert to fraction form
    646,288.04/969,432.30 = 645,354.12/x
  3. Step 3: Cross multiply
    646,288.04x = 969,432.30 × 645,354.12
  4. Step 4: Simplify right side
    646,288.04x = 625,627,128,866.08
  5. Step 5: Solve for x
    x = 625,627,128,866.08/646,288.04
  6. Step 6: Final answer
    x = 968,031.42

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Double scale
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1.5x scale

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.