Home / 927,470.83-1,279,848.31-513,979.87

Finding the Fourth Proportional to 927,470.83, 1,279,848.31 and 513,979.87

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Solution

The fourth proportional to 927,470.83, 1,279,848.31 and 513,979.87 is: 709,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,470.83 : 1,279,848.31 = 513,979.87 : x
  2. Step 2: Convert to fraction form
    927,470.83/1,279,848.31 = 513,979.87/x
  3. Step 3: Cross multiply
    927,470.83x = 1,279,848.31 × 513,979.87
  4. Step 4: Simplify right side
    927,470.83x = 657,816,267,993.52
  5. Step 5: Solve for x
    x = 657,816,267,993.52/927,470.83
  6. Step 6: Final answer
    x = 709,258.17

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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.