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Finding the Fourth Proportional to 646,373.39, 970,002.95 and 225,649.26

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Solution

The fourth proportional to 646,373.39, 970,002.95 and 225,649.26 is: 338,628.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,373.39 : 970,002.95 = 225,649.26 : x
  2. Step 2: Convert to fraction form
    646,373.39/970,002.95 = 225,649.26/x
  3. Step 3: Cross multiply
    646,373.39x = 970,002.95 × 225,649.26
  4. Step 4: Simplify right side
    646,373.39x = 218,880,446,737.07
  5. Step 5: Solve for x
    x = 218,880,446,737.07/646,373.39
  6. Step 6: Final answer
    x = 338,628.50

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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.