Home / 998,857.60-1,378,428.81-546,148.60

Finding the Fourth Proportional to 998,857.60, 1,378,428.81 and 546,148.60

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Solution

The fourth proportional to 998,857.60, 1,378,428.81 and 546,148.60 is: 753,687.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,857.60 : 1,378,428.81 = 546,148.60 : x
  2. Step 2: Convert to fraction form
    998,857.60/1,378,428.81 = 546,148.60/x
  3. Step 3: Cross multiply
    998,857.60x = 1,378,428.81 × 546,148.60
  4. Step 4: Simplify right side
    998,857.60x = 752,826,964,781.17
  5. Step 5: Solve for x
    x = 752,826,964,781.17/998,857.60
  6. Step 6: Final answer
    x = 753,687.98

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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.