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Finding the Fourth Proportional to 498,279.60, 696,016.80 and 498,279.60

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Solution

The fourth proportional to 498,279.60, 696,016.80 and 498,279.60 is: 696,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,279.60 : 696,016.80 = 498,279.60 : x
  2. Step 2: Convert to fraction form
    498,279.60/696,016.80 = 498,279.60/x
  3. Step 3: Cross multiply
    498,279.60x = 696,016.80 × 498,279.60
  4. Step 4: Simplify right side
    498,279.60x = 346,810,972,697.28
  5. Step 5: Solve for x
    x = 346,810,972,697.28/498,279.60
  6. Step 6: Final answer
    x = 696,016.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.