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Finding the Fourth Proportional to 777,424.80, 1,072,479.60 and 454,937.04

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Solution

The fourth proportional to 777,424.80, 1,072,479.60 and 454,937.04 is: 627,598.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,424.80 : 1,072,479.60 = 454,937.04 : x
  2. Step 2: Convert to fraction form
    777,424.80/1,072,479.60 = 454,937.04/x
  3. Step 3: Cross multiply
    777,424.80x = 1,072,479.60 × 454,937.04
  4. Step 4: Simplify right side
    777,424.80x = 487,910,694,684.38
  5. Step 5: Solve for x
    x = 487,910,694,684.38/777,424.80
  6. Step 6: Final answer
    x = 627,598.57

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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.