Home / 1,125,221.40-1,552,824-635,216.76

Finding the Fourth Proportional to 1,125,221.40, 1,552,824 and 635,216.76

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Solution

The fourth proportional to 1,125,221.40, 1,552,824 and 635,216.76 is: 876,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,221.40 : 1,552,824 = 635,216.76 : x
  2. Step 2: Convert to fraction form
    1,125,221.40/1,552,824 = 635,216.76/x
  3. Step 3: Cross multiply
    1,125,221.40x = 1,552,824 × 635,216.76
  4. Step 4: Simplify right side
    1,125,221.40x = 986,379,830,130.24
  5. Step 5: Solve for x
    x = 986,379,830,130.24/1,125,221.40
  6. Step 6: Final answer
    x = 876,609.55

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.