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Finding the Fourth Proportional to 499,210.39, 688,958.72 and 295,326.86

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Solution

The fourth proportional to 499,210.39, 688,958.72 and 295,326.86 is: 407,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,210.39 : 688,958.72 = 295,326.86 : x
  2. Step 2: Convert to fraction form
    499,210.39/688,958.72 = 295,326.86/x
  3. Step 3: Cross multiply
    499,210.39x = 688,958.72 × 295,326.86
  4. Step 4: Simplify right side
    499,210.39x = 203,468,015,447.22
  5. Step 5: Solve for x
    x = 203,468,015,447.22/499,210.39
  6. Step 6: Final answer
    x = 407,579.69

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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.