Home / 916,419.20-1,374,628.80-242,499.20

Finding the Fourth Proportional to 916,419.20, 1,374,628.80 and 242,499.20

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Solution

The fourth proportional to 916,419.20, 1,374,628.80 and 242,499.20 is: 363,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,419.20 : 1,374,628.80 = 242,499.20 : x
  2. Step 2: Convert to fraction form
    916,419.20/1,374,628.80 = 242,499.20/x
  3. Step 3: Cross multiply
    916,419.20x = 1,374,628.80 × 242,499.20
  4. Step 4: Simplify right side
    916,419.20x = 333,346,384,296.96
  5. Step 5: Solve for x
    x = 333,346,384,296.96/916,419.20
  6. Step 6: Final answer
    x = 363,748.80

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Double scale
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Similar ratio
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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.