Home / 813,998.70-1,220,998.05-601,422.30

Finding the Fourth Proportional to 813,998.70, 1,220,998.05 and 601,422.30

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Solution

The fourth proportional to 813,998.70, 1,220,998.05 and 601,422.30 is: 902,133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,998.70 : 1,220,998.05 = 601,422.30 : x
  2. Step 2: Convert to fraction form
    813,998.70/1,220,998.05 = 601,422.30/x
  3. Step 3: Cross multiply
    813,998.70x = 1,220,998.05 × 601,422.30
  4. Step 4: Simplify right side
    813,998.70x = 734,335,455,526.52
  5. Step 5: Solve for x
    x = 734,335,455,526.52/813,998.70
  6. Step 6: Final answer
    x = 902,133.45

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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.