Home / 627,011.46-865,332.24-355,145.48

Finding the Fourth Proportional to 627,011.46, 865,332.24 and 355,145.48

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Solution

The fourth proportional to 627,011.46, 865,332.24 and 355,145.48 is: 490,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,011.46 : 865,332.24 = 355,145.48 : x
  2. Step 2: Convert to fraction form
    627,011.46/865,332.24 = 355,145.48/x
  3. Step 3: Cross multiply
    627,011.46x = 865,332.24 × 355,145.48
  4. Step 4: Simplify right side
    627,011.46x = 307,318,833,734.28
  5. Step 5: Solve for x
    x = 307,318,833,734.28/627,011.46
  6. Step 6: Final answer
    x = 490,132.72

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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.