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Finding the Fourth Proportional to 518,921.85, 716,095.92 and 304,204.93

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Solution

The fourth proportional to 518,921.85, 716,095.92 and 304,204.93 is: 419,793.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,921.85 : 716,095.92 = 304,204.93 : x
  2. Step 2: Convert to fraction form
    518,921.85/716,095.92 = 304,204.93/x
  3. Step 3: Cross multiply
    518,921.85x = 716,095.92 × 304,204.93
  4. Step 4: Simplify right side
    518,921.85x = 217,839,909,216.89
  5. Step 5: Solve for x
    x = 217,839,909,216.89/518,921.85
  6. Step 6: Final answer
    x = 419,793.29

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1.5x scale

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.