Home / 821,461.30-1,232,375.55-288,999.70

Finding the Fourth Proportional to 821,461.30, 1,232,375.55 and 288,999.70

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Solution

The fourth proportional to 821,461.30, 1,232,375.55 and 288,999.70 is: 433,564.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,461.30 : 1,232,375.55 = 288,999.70 : x
  2. Step 2: Convert to fraction form
    821,461.30/1,232,375.55 = 288,999.70/x
  3. Step 3: Cross multiply
    821,461.30x = 1,232,375.55 × 288,999.70
  4. Step 4: Simplify right side
    821,461.30x = 356,156,164,237.34
  5. Step 5: Solve for x
    x = 356,156,164,237.34/821,461.30
  6. Step 6: Final answer
    x = 433,564.14

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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.