Home / 878,612.85-1,316,414.79-479,533.65

Finding the Fourth Proportional to 878,612.85, 1,316,414.79 and 479,533.65

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Solution

The fourth proportional to 878,612.85, 1,316,414.79 and 479,533.65 is: 718,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,612.85 : 1,316,414.79 = 479,533.65 : x
  2. Step 2: Convert to fraction form
    878,612.85/1,316,414.79 = 479,533.65/x
  3. Step 3: Cross multiply
    878,612.85x = 1,316,414.79 × 479,533.65
  4. Step 4: Simplify right side
    878,612.85x = 631,265,189,162.68
  5. Step 5: Solve for x
    x = 631,265,189,162.68/878,612.85
  6. Step 6: Final answer
    x = 718,479.35

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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.