Home / 547,290.76-755,387.22-321,009.16

Finding the Fourth Proportional to 547,290.76, 755,387.22 and 321,009.16

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Solution

The fourth proportional to 547,290.76, 755,387.22 and 321,009.16 is: 443,066.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,290.76 : 755,387.22 = 321,009.16 : x
  2. Step 2: Convert to fraction form
    547,290.76/755,387.22 = 321,009.16/x
  3. Step 3: Cross multiply
    547,290.76x = 755,387.22 × 321,009.16
  4. Step 4: Simplify right side
    547,290.76x = 242,486,216,966.94
  5. Step 5: Solve for x
    x = 242,486,216,966.94/547,290.76
  6. Step 6: Final answer
    x = 443,066.53

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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.