Home / 918,268.20-1,377,402.30-445,876.20

Finding the Fourth Proportional to 918,268.20, 1,377,402.30 and 445,876.20

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Solution

The fourth proportional to 918,268.20, 1,377,402.30 and 445,876.20 is: 668,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,268.20 : 1,377,402.30 = 445,876.20 : x
  2. Step 2: Convert to fraction form
    918,268.20/1,377,402.30 = 445,876.20/x
  3. Step 3: Cross multiply
    918,268.20x = 1,377,402.30 × 445,876.20
  4. Step 4: Simplify right side
    918,268.20x = 614,150,903,395.26
  5. Step 5: Solve for x
    x = 614,150,903,395.26/918,268.20
  6. Step 6: Final answer
    x = 668,814.30

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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.