Home / 725,117.47-1,000,218.73-430,567.55

Finding the Fourth Proportional to 725,117.47, 1,000,218.73 and 430,567.55

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Solution

The fourth proportional to 725,117.47, 1,000,218.73 and 430,567.55 is: 593,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,117.47 : 1,000,218.73 = 430,567.55 : x
  2. Step 2: Convert to fraction form
    725,117.47/1,000,218.73 = 430,567.55/x
  3. Step 3: Cross multiply
    725,117.47x = 1,000,218.73 × 430,567.55
  4. Step 4: Simplify right side
    725,117.47x = 430,661,726,520.83
  5. Step 5: Solve for x
    x = 430,661,726,520.83/725,117.47
  6. Step 6: Final answer
    x = 593,919.95

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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.