Home / 909,968.10-1,364,952.15-278,799.90

Finding the Fourth Proportional to 909,968.10, 1,364,952.15 and 278,799.90

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Solution

The fourth proportional to 909,968.10, 1,364,952.15 and 278,799.90 is: 418,199.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,968.10 : 1,364,952.15 = 278,799.90 : x
  2. Step 2: Convert to fraction form
    909,968.10/1,364,952.15 = 278,799.90/x
  3. Step 3: Cross multiply
    909,968.10x = 1,364,952.15 × 278,799.90
  4. Step 4: Simplify right side
    909,968.10x = 380,548,522,924.79
  5. Step 5: Solve for x
    x = 380,548,522,924.79/909,968.10
  6. Step 6: Final answer
    x = 418,199.85

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1.5x scale

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.