Home / 807,153.20-1,209,865.80-274,180.40

Finding the Fourth Proportional to 807,153.20, 1,209,865.80 and 274,180.40

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Solution

The fourth proportional to 807,153.20, 1,209,865.80 and 274,180.40 is: 410,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,153.20 : 1,209,865.80 = 274,180.40 : x
  2. Step 2: Convert to fraction form
    807,153.20/1,209,865.80 = 274,180.40/x
  3. Step 3: Cross multiply
    807,153.20x = 1,209,865.80 × 274,180.40
  4. Step 4: Simplify right side
    807,153.20x = 331,721,488,990.32
  5. Step 5: Solve for x
    x = 331,721,488,990.32/807,153.20
  6. Step 6: Final answer
    x = 410,977.11

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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.