Home / 777,291.52-1,072,738.80-454,982.08

Finding the Fourth Proportional to 777,291.52, 1,072,738.80 and 454,982.08

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Solution

The fourth proportional to 777,291.52, 1,072,738.80 and 454,982.08 is: 627,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,291.52 : 1,072,738.80 = 454,982.08 : x
  2. Step 2: Convert to fraction form
    777,291.52/1,072,738.80 = 454,982.08/x
  3. Step 3: Cross multiply
    777,291.52x = 1,072,738.80 × 454,982.08
  4. Step 4: Simplify right side
    777,291.52x = 488,076,930,520.70
  5. Step 5: Solve for x
    x = 488,076,930,520.70/777,291.52
  6. Step 6: Final answer
    x = 627,920.05

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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.