Home / 754,528.80-1,131,404.40-280,970.40

Finding the Fourth Proportional to 754,528.80, 1,131,404.40 and 280,970.40

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Solution

The fourth proportional to 754,528.80, 1,131,404.40 and 280,970.40 is: 421,310.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,528.80 : 1,131,404.40 = 280,970.40 : x
  2. Step 2: Convert to fraction form
    754,528.80/1,131,404.40 = 280,970.40/x
  3. Step 3: Cross multiply
    754,528.80x = 1,131,404.40 × 280,970.40
  4. Step 4: Simplify right side
    754,528.80x = 317,891,146,829.76
  5. Step 5: Solve for x
    x = 317,891,146,829.76/754,528.80
  6. Step 6: Final answer
    x = 421,310.82

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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.