Home / 730,612.80-1,095,919.20-615,139.20

Finding the Fourth Proportional to 730,612.80, 1,095,919.20 and 615,139.20

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Solution

The fourth proportional to 730,612.80, 1,095,919.20 and 615,139.20 is: 922,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,612.80 : 1,095,919.20 = 615,139.20 : x
  2. Step 2: Convert to fraction form
    730,612.80/1,095,919.20 = 615,139.20/x
  3. Step 3: Cross multiply
    730,612.80x = 1,095,919.20 × 615,139.20
  4. Step 4: Simplify right side
    730,612.80x = 674,142,859,952.64
  5. Step 5: Solve for x
    x = 674,142,859,952.64/730,612.80
  6. Step 6: Final answer
    x = 922,708.80

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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.