Home / 890,406.20-1,228,758.18-482,519.36

Finding the Fourth Proportional to 890,406.20, 1,228,758.18 and 482,519.36

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Solution

The fourth proportional to 890,406.20, 1,228,758.18 and 482,519.36 is: 665,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,406.20 : 1,228,758.18 = 482,519.36 : x
  2. Step 2: Convert to fraction form
    890,406.20/1,228,758.18 = 482,519.36/x
  3. Step 3: Cross multiply
    890,406.20x = 1,228,758.18 × 482,519.36
  4. Step 4: Simplify right side
    890,406.20x = 592,899,610,608.37
  5. Step 5: Solve for x
    x = 592,899,610,608.37/890,406.20
  6. Step 6: Final answer
    x = 665,875.43

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Double scale
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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.