Home / 819,829.28-1,221,594.08-730,395.60

Finding the Fourth Proportional to 819,829.28, 1,221,594.08 and 730,395.60

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Solution

The fourth proportional to 819,829.28, 1,221,594.08 and 730,395.60 is: 1,088,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,829.28 : 1,221,594.08 = 730,395.60 : x
  2. Step 2: Convert to fraction form
    819,829.28/1,221,594.08 = 730,395.60/x
  3. Step 3: Cross multiply
    819,829.28x = 1,221,594.08 × 730,395.60
  4. Step 4: Simplify right side
    819,829.28x = 892,246,941,018.05
  5. Step 5: Solve for x
    x = 892,246,941,018.05/819,829.28
  6. Step 6: Final answer
    x = 1,088,332.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.