Home / 909,864.82-1,364,748.02-278,780.46

Finding the Fourth Proportional to 909,864.82, 1,364,748.02 and 278,780.46

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Solution

The fourth proportional to 909,864.82, 1,364,748.02 and 278,780.46 is: 418,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,864.82 : 1,364,748.02 = 278,780.46 : x
  2. Step 2: Convert to fraction form
    909,864.82/1,364,748.02 = 278,780.46/x
  3. Step 3: Cross multiply
    909,864.82x = 1,364,748.02 × 278,780.46
  4. Step 4: Simplify right side
    909,864.82x = 380,465,080,799.69
  5. Step 5: Solve for x
    x = 380,465,080,799.69/909,864.82
  6. Step 6: Final answer
    x = 418,155.61

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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.