Home / 927,471.83-1,279,849.69-513,980.87

Finding the Fourth Proportional to 927,471.83, 1,279,849.69 and 513,980.87

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Solution

The fourth proportional to 927,471.83, 1,279,849.69 and 513,980.87 is: 709,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,471.83 : 1,279,849.69 = 513,980.87 : x
  2. Step 2: Convert to fraction form
    927,471.83/1,279,849.69 = 513,980.87/x
  3. Step 3: Cross multiply
    927,471.83x = 1,279,849.69 × 513,980.87
  4. Step 4: Simplify right side
    927,471.83x = 657,818,257,135.43
  5. Step 5: Solve for x
    x = 657,818,257,135.43/927,471.83
  6. Step 6: Final answer
    x = 709,259.55

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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.