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Finding the Fourth Proportional to 518,865.74, 716,052.52 and 301,057.95

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Solution

The fourth proportional to 518,865.74, 716,052.52 and 301,057.95 is: 415,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,865.74 : 716,052.52 = 301,057.95 : x
  2. Step 2: Convert to fraction form
    518,865.74/716,052.52 = 301,057.95/x
  3. Step 3: Cross multiply
    518,865.74x = 716,052.52 × 301,057.95
  4. Step 4: Simplify right side
    518,865.74x = 215,573,303,763.53
  5. Step 5: Solve for x
    x = 215,573,303,763.53/518,865.74
  6. Step 6: Final answer
    x = 415,470.30

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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.