Home / 807,220.20-1,209,966.30-274,247.40

Finding the Fourth Proportional to 807,220.20, 1,209,966.30 and 274,247.40

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Solution

The fourth proportional to 807,220.20, 1,209,966.30 and 274,247.40 is: 411,077.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,220.20 : 1,209,966.30 = 274,247.40 : x
  2. Step 2: Convert to fraction form
    807,220.20/1,209,966.30 = 274,247.40/x
  3. Step 3: Cross multiply
    807,220.20x = 1,209,966.30 × 274,247.40
  4. Step 4: Simplify right side
    807,220.20x = 331,830,111,862.62
  5. Step 5: Solve for x
    x = 331,830,111,862.62/807,220.20
  6. Step 6: Final answer
    x = 411,077.56

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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.