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Finding the Fourth Proportional to 646,763.24, 970,144.92 and 247,526.48

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Solution

The fourth proportional to 646,763.24, 970,144.92 and 247,526.48 is: 371,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,763.24 : 970,144.92 = 247,526.48 : x
  2. Step 2: Convert to fraction form
    646,763.24/970,144.92 = 247,526.48/x
  3. Step 3: Cross multiply
    646,763.24x = 970,144.92 × 247,526.48
  4. Step 4: Simplify right side
    646,763.24x = 240,136,557,137.48
  5. Step 5: Solve for x
    x = 240,136,557,137.48/646,763.24
  6. Step 6: Final answer
    x = 371,289.74

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Half scale
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Double scale
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Similar ratio
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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.