Home / 820,146.30-1,230,219.45-707,953.20

Finding the Fourth Proportional to 820,146.30, 1,230,219.45 and 707,953.20

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Solution

The fourth proportional to 820,146.30, 1,230,219.45 and 707,953.20 is: 1,061,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,146.30 : 1,230,219.45 = 707,953.20 : x
  2. Step 2: Convert to fraction form
    820,146.30/1,230,219.45 = 707,953.20/x
  3. Step 3: Cross multiply
    820,146.30x = 1,230,219.45 × 707,953.20
  4. Step 4: Simplify right side
    820,146.30x = 870,937,796,329.74
  5. Step 5: Solve for x
    x = 870,937,796,329.74/820,146.30
  6. Step 6: Final answer
    x = 1,061,929.80

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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.