Home / 909,868.20-1,364,753.08-278,783.83

Finding the Fourth Proportional to 909,868.20, 1,364,753.08 and 278,783.83

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Solution

The fourth proportional to 909,868.20, 1,364,753.08 and 278,783.83 is: 418,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,868.20 : 1,364,753.08 = 278,783.83 : x
  2. Step 2: Convert to fraction form
    909,868.20/1,364,753.08 = 278,783.83/x
  3. Step 3: Cross multiply
    909,868.20x = 1,364,753.08 × 278,783.83
  4. Step 4: Simplify right side
    909,868.20x = 380,471,090,646.70
  5. Step 5: Solve for x
    x = 380,471,090,646.70/909,868.20
  6. Step 6: Final answer
    x = 418,160.66

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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.