Home / 909,886.18-1,364,780.10-278,801.86

Finding the Fourth Proportional to 909,886.18, 1,364,780.10 and 278,801.86

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Solution

The fourth proportional to 909,886.18, 1,364,780.10 and 278,801.86 is: 418,187.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,886.18 : 1,364,780.10 = 278,801.86 : x
  2. Step 2: Convert to fraction form
    909,886.18/1,364,780.10 = 278,801.86/x
  3. Step 3: Cross multiply
    909,886.18x = 1,364,780.10 × 278,801.86
  4. Step 4: Simplify right side
    909,886.18x = 380,503,230,370.99
  5. Step 5: Solve for x
    x = 380,503,230,370.99/909,886.18
  6. Step 6: Final answer
    x = 418,187.72

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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.