Home / 849,630.59-1,274,142.33-280,906.71

Finding the Fourth Proportional to 849,630.59, 1,274,142.33 and 280,906.71

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Solution

The fourth proportional to 849,630.59, 1,274,142.33 and 280,906.71 is: 421,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,630.59 : 1,274,142.33 = 280,906.71 : x
  2. Step 2: Convert to fraction form
    849,630.59/1,274,142.33 = 280,906.71/x
  3. Step 3: Cross multiply
    849,630.59x = 1,274,142.33 × 280,906.71
  4. Step 4: Simplify right side
    849,630.59x = 357,915,128,007.48
  5. Step 5: Solve for x
    x = 357,915,128,007.48/849,630.59
  6. Step 6: Final answer
    x = 421,259.70

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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.