Home / 627,865.20-941,797.80-312,937.20

Finding the Fourth Proportional to 627,865.20, 941,797.80 and 312,937.20

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Solution

The fourth proportional to 627,865.20, 941,797.80 and 312,937.20 is: 469,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,865.20 : 941,797.80 = 312,937.20 : x
  2. Step 2: Convert to fraction form
    627,865.20/941,797.80 = 312,937.20/x
  3. Step 3: Cross multiply
    627,865.20x = 941,797.80 × 312,937.20
  4. Step 4: Simplify right side
    627,865.20x = 294,723,566,498.16
  5. Step 5: Solve for x
    x = 294,723,566,498.16/627,865.20
  6. Step 6: Final answer
    x = 469,405.80

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1.5x scale

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.