Home / 909,903.15-1,364,854.73-278,734.95

Finding the Fourth Proportional to 909,903.15, 1,364,854.73 and 278,734.95

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Solution

The fourth proportional to 909,903.15, 1,364,854.73 and 278,734.95 is: 418,102.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,903.15 : 1,364,854.73 = 278,734.95 : x
  2. Step 2: Convert to fraction form
    909,903.15/1,364,854.73 = 278,734.95/x
  3. Step 3: Cross multiply
    909,903.15x = 1,364,854.73 × 278,734.95
  4. Step 4: Simplify right side
    909,903.15x = 380,432,713,530.14
  5. Step 5: Solve for x
    x = 380,432,713,530.14/909,903.15
  6. Step 6: Final answer
    x = 418,102.43

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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.