Home / 777,288.52-1,072,734.66-454,979.08

Finding the Fourth Proportional to 777,288.52, 1,072,734.66 and 454,979.08

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Solution

The fourth proportional to 777,288.52, 1,072,734.66 and 454,979.08 is: 627,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,288.52 : 1,072,734.66 = 454,979.08 : x
  2. Step 2: Convert to fraction form
    777,288.52/1,072,734.66 = 454,979.08/x
  3. Step 3: Cross multiply
    777,288.52x = 1,072,734.66 × 454,979.08
  4. Step 4: Simplify right side
    777,288.52x = 488,071,828,690.91
  5. Step 5: Solve for x
    x = 488,071,828,690.91/777,288.52
  6. Step 6: Final answer
    x = 627,915.91

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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.