Home / 913,078.04-1,260,451.19-545,684.78

Finding the Fourth Proportional to 913,078.04, 1,260,451.19 and 545,684.78

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Solution

The fourth proportional to 913,078.04, 1,260,451.19 and 545,684.78 is: 753,286.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,078.04 : 1,260,451.19 = 545,684.78 : x
  2. Step 2: Convert to fraction form
    913,078.04/1,260,451.19 = 545,684.78/x
  3. Step 3: Cross multiply
    913,078.04x = 1,260,451.19 × 545,684.78
  4. Step 4: Simplify right side
    913,078.04x = 687,809,034,831.23
  5. Step 5: Solve for x
    x = 687,809,034,831.23/913,078.04
  6. Step 6: Final answer
    x = 753,286.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.