Home / 488,864.32-674,121.12-361,806.40

Finding the Fourth Proportional to 488,864.32, 674,121.12 and 361,806.40

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Solution

The fourth proportional to 488,864.32, 674,121.12 and 361,806.40 is: 498,914.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,864.32 : 674,121.12 = 361,806.40 : x
  2. Step 2: Convert to fraction form
    488,864.32/674,121.12 = 361,806.40/x
  3. Step 3: Cross multiply
    488,864.32x = 674,121.12 × 361,806.40
  4. Step 4: Simplify right side
    488,864.32x = 243,901,335,591.17
  5. Step 5: Solve for x
    x = 243,901,335,591.17/488,864.32
  6. Step 6: Final answer
    x = 498,914.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.