Home / 890,334.30-1,228,648.68-482,426.58

Finding the Fourth Proportional to 890,334.30, 1,228,648.68 and 482,426.58

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Solution

The fourth proportional to 890,334.30, 1,228,648.68 and 482,426.58 is: 665,741.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,334.30 : 1,228,648.68 = 482,426.58 : x
  2. Step 2: Convert to fraction form
    890,334.30/1,228,648.68 = 482,426.58/x
  3. Step 3: Cross multiply
    890,334.30x = 1,228,648.68 × 482,426.58
  4. Step 4: Simplify right side
    890,334.30x = 592,732,780,713.91
  5. Step 5: Solve for x
    x = 592,732,780,713.91/890,334.30
  6. Step 6: Final answer
    x = 665,741.82

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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.