Home / 820,146.80-1,230,220.20-707,953.70

Finding the Fourth Proportional to 820,146.80, 1,230,220.20 and 707,953.70

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Solution

The fourth proportional to 820,146.80, 1,230,220.20 and 707,953.70 is: 1,061,930.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,146.80 : 1,230,220.20 = 707,953.70 : x
  2. Step 2: Convert to fraction form
    820,146.80/1,230,220.20 = 707,953.70/x
  3. Step 3: Cross multiply
    820,146.80x = 1,230,220.20 × 707,953.70
  4. Step 4: Simplify right side
    820,146.80x = 870,938,942,404.74
  5. Step 5: Solve for x
    x = 870,938,942,404.74/820,146.80
  6. Step 6: Final answer
    x = 1,061,930.55

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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.