Home / 906,908.20-1,361,409.90-487,004.20

Finding the Fourth Proportional to 906,908.20, 1,361,409.90 and 487,004.20

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Solution

The fourth proportional to 906,908.20, 1,361,409.90 and 487,004.20 is: 731,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,908.20 : 1,361,409.90 = 487,004.20 : x
  2. Step 2: Convert to fraction form
    906,908.20/1,361,409.90 = 487,004.20/x
  3. Step 3: Cross multiply
    906,908.20x = 1,361,409.90 × 487,004.20
  4. Step 4: Simplify right side
    906,908.20x = 663,012,339,221.58
  5. Step 5: Solve for x
    x = 663,012,339,221.58/906,908.20
  6. Step 6: Final answer
    x = 731,068.85

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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.