Home / 825,049.80-1,138,649.40-462,474.36

Finding the Fourth Proportional to 825,049.80, 1,138,649.40 and 462,474.36

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Solution

The fourth proportional to 825,049.80, 1,138,649.40 and 462,474.36 is: 638,259.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,049.80 : 1,138,649.40 = 462,474.36 : x
  2. Step 2: Convert to fraction form
    825,049.80/1,138,649.40 = 462,474.36/x
  3. Step 3: Cross multiply
    825,049.80x = 1,138,649.40 × 462,474.36
  4. Step 4: Simplify right side
    825,049.80x = 526,596,152,529.38
  5. Step 5: Solve for x
    x = 526,596,152,529.38/825,049.80
  6. Step 6: Final answer
    x = 638,259.84

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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.