Home / 777,356.52-1,073,020.44-455,170.20

Finding the Fourth Proportional to 777,356.52, 1,073,020.44 and 455,170.20

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Solution

The fourth proportional to 777,356.52, 1,073,020.44 and 455,170.20 is: 628,292.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,356.52 : 1,073,020.44 = 455,170.20 : x
  2. Step 2: Convert to fraction form
    777,356.52/1,073,020.44 = 455,170.20/x
  3. Step 3: Cross multiply
    777,356.52x = 1,073,020.44 × 455,170.20
  4. Step 4: Simplify right side
    777,356.52x = 488,406,928,278.89
  5. Step 5: Solve for x
    x = 488,406,928,278.89/777,356.52
  6. Step 6: Final answer
    x = 628,292.06

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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.