Home / 1,021,327.02-1,531,990.52-311,348.90

Finding the Fourth Proportional to 1,021,327.02, 1,531,990.52 and 311,348.90

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Solution

The fourth proportional to 1,021,327.02, 1,531,990.52 and 311,348.90 is: 467,023.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,327.02 : 1,531,990.52 = 311,348.90 : x
  2. Step 2: Convert to fraction form
    1,021,327.02/1,531,990.52 = 311,348.90/x
  3. Step 3: Cross multiply
    1,021,327.02x = 1,531,990.52 × 311,348.90
  4. Step 4: Simplify right side
    1,021,327.02x = 476,983,567,820.78
  5. Step 5: Solve for x
    x = 476,983,567,820.78/1,021,327.02
  6. Step 6: Final answer
    x = 467,023.35

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Double scale
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Similar ratio
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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.