Home / 998,999.28-1,378,623.48-546,289.68

Finding the Fourth Proportional to 998,999.28, 1,378,623.48 and 546,289.68

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Solution

The fourth proportional to 998,999.28, 1,378,623.48 and 546,289.68 is: 753,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,999.28 : 1,378,623.48 = 546,289.68 : x
  2. Step 2: Convert to fraction form
    998,999.28/1,378,623.48 = 546,289.68/x
  3. Step 3: Cross multiply
    998,999.28x = 1,378,623.48 × 546,289.68
  4. Step 4: Simplify right side
    998,999.28x = 753,127,779,729.69
  5. Step 5: Solve for x
    x = 753,127,779,729.69/998,999.28
  6. Step 6: Final answer
    x = 753,882.20

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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.