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Finding the Fourth Proportional to 518,984.54, 716,182.43 and 304,267.61

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Solution

The fourth proportional to 518,984.54, 716,182.43 and 304,267.61 is: 419,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,984.54 : 716,182.43 = 304,267.61 : x
  2. Step 2: Convert to fraction form
    518,984.54/716,182.43 = 304,267.61/x
  3. Step 3: Cross multiply
    518,984.54x = 716,182.43 × 304,267.61
  4. Step 4: Simplify right side
    518,984.54x = 217,911,116,569.21
  5. Step 5: Solve for x
    x = 217,911,116,569.21/518,984.54
  6. Step 6: Final answer
    x = 419,879.79

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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.