Home / 627,218.79-865,565.46-340,739.55

Finding the Fourth Proportional to 627,218.79, 865,565.46 and 340,739.55

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Solution

The fourth proportional to 627,218.79, 865,565.46 and 340,739.55 is: 470,222.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,218.79 : 865,565.46 = 340,739.55 : x
  2. Step 2: Convert to fraction form
    627,218.79/865,565.46 = 340,739.55/x
  3. Step 3: Cross multiply
    627,218.79x = 865,565.46 × 340,739.55
  4. Step 4: Simplify right side
    627,218.79x = 294,932,385,335.94
  5. Step 5: Solve for x
    x = 294,932,385,335.94/627,218.79
  6. Step 6: Final answer
    x = 470,222.50

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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.