Home / 641,107.45-880,095.38-550,305.78

Finding the Fourth Proportional to 641,107.45, 880,095.38 and 550,305.78

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Solution

The fourth proportional to 641,107.45, 880,095.38 and 550,305.78 is: 755,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,107.45 : 880,095.38 = 550,305.78 : x
  2. Step 2: Convert to fraction form
    641,107.45/880,095.38 = 550,305.78/x
  3. Step 3: Cross multiply
    641,107.45x = 880,095.38 × 550,305.78
  4. Step 4: Simplify right side
    641,107.45x = 484,321,574,565.30
  5. Step 5: Solve for x
    x = 484,321,574,565.30/641,107.45
  6. Step 6: Final answer
    x = 755,445.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.