Home / 825,718.20-1,238,577.30-471,424.20

Finding the Fourth Proportional to 825,718.20, 1,238,577.30 and 471,424.20

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Solution

The fourth proportional to 825,718.20, 1,238,577.30 and 471,424.20 is: 707,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,718.20 : 1,238,577.30 = 471,424.20 : x
  2. Step 2: Convert to fraction form
    825,718.20/1,238,577.30 = 471,424.20/x
  3. Step 3: Cross multiply
    825,718.20x = 1,238,577.30 × 471,424.20
  4. Step 4: Simplify right side
    825,718.20x = 583,895,312,790.66
  5. Step 5: Solve for x
    x = 583,895,312,790.66/825,718.20
  6. Step 6: Final answer
    x = 707,136.30

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Double scale
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Similar ratio
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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.