Home / 880,297.40-1,320,446.10-319,129.40

Finding the Fourth Proportional to 880,297.40, 1,320,446.10 and 319,129.40

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Solution

The fourth proportional to 880,297.40, 1,320,446.10 and 319,129.40 is: 478,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,297.40 : 1,320,446.10 = 319,129.40 : x
  2. Step 2: Convert to fraction form
    880,297.40/1,320,446.10 = 319,129.40/x
  3. Step 3: Cross multiply
    880,297.40x = 1,320,446.10 × 319,129.40
  4. Step 4: Simplify right side
    880,297.40x = 421,393,171,625.34
  5. Step 5: Solve for x
    x = 421,393,171,625.34/880,297.40
  6. Step 6: Final answer
    x = 478,694.10

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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.