Home / 759,780.20-1,139,722.25-254,320.76

Finding the Fourth Proportional to 759,780.20, 1,139,722.25 and 254,320.76

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Solution

The fourth proportional to 759,780.20, 1,139,722.25 and 254,320.76 is: 381,498.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,780.20 : 1,139,722.25 = 254,320.76 : x
  2. Step 2: Convert to fraction form
    759,780.20/1,139,722.25 = 254,320.76/x
  3. Step 3: Cross multiply
    759,780.20x = 1,139,722.25 × 254,320.76
  4. Step 4: Simplify right side
    759,780.20x = 289,855,030,386.61
  5. Step 5: Solve for x
    x = 289,855,030,386.61/759,780.20
  6. Step 6: Final answer
    x = 381,498.53

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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.