Home / 910,306.80-1,363,929.30-720,037.80

Finding the Fourth Proportional to 910,306.80, 1,363,929.30 and 720,037.80

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Solution

The fourth proportional to 910,306.80, 1,363,929.30 and 720,037.80 is: 1,078,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,306.80 : 1,363,929.30 = 720,037.80 : x
  2. Step 2: Convert to fraction form
    910,306.80/1,363,929.30 = 720,037.80/x
  3. Step 3: Cross multiply
    910,306.80x = 1,363,929.30 × 720,037.80
  4. Step 4: Simplify right side
    910,306.80x = 982,080,652,527.54
  5. Step 5: Solve for x
    x = 982,080,652,527.54/910,306.80
  6. Step 6: Final answer
    x = 1,078,845.78

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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.