Home / 865,628.18-1,298,464.46-410,112.76

Finding the Fourth Proportional to 865,628.18, 1,298,464.46 and 410,112.76

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Solution

The fourth proportional to 865,628.18, 1,298,464.46 and 410,112.76 is: 615,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,628.18 : 1,298,464.46 = 410,112.76 : x
  2. Step 2: Convert to fraction form
    865,628.18/1,298,464.46 = 410,112.76/x
  3. Step 3: Cross multiply
    865,628.18x = 1,298,464.46 × 410,112.76
  4. Step 4: Simplify right side
    865,628.18x = 532,516,843,452.51
  5. Step 5: Solve for x
    x = 532,516,843,452.51/865,628.18
  6. Step 6: Final answer
    x = 615,179.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.