Home / 777,042.89-1,072,395.95-454,733.76

Finding the Fourth Proportional to 777,042.89, 1,072,395.95 and 454,733.76

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Solution

The fourth proportional to 777,042.89, 1,072,395.95 and 454,733.76 is: 627,577.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,042.89 : 1,072,395.95 = 454,733.76 : x
  2. Step 2: Convert to fraction form
    777,042.89/1,072,395.95 = 454,733.76/x
  3. Step 3: Cross multiply
    777,042.89x = 1,072,395.95 × 454,733.76
  4. Step 4: Simplify right side
    777,042.89x = 487,654,640,278.60
  5. Step 5: Solve for x
    x = 487,654,640,278.60/777,042.89
  6. Step 6: Final answer
    x = 627,577.51

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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.