Home / 659,946.12-990,026.40-204,430.98

Finding the Fourth Proportional to 659,946.12, 990,026.40 and 204,430.98

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Solution

The fourth proportional to 659,946.12, 990,026.40 and 204,430.98 is: 306,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,946.12 : 990,026.40 = 204,430.98 : x
  2. Step 2: Convert to fraction form
    659,946.12/990,026.40 = 204,430.98/x
  3. Step 3: Cross multiply
    659,946.12x = 990,026.40 × 204,430.98
  4. Step 4: Simplify right side
    659,946.12x = 202,392,067,177.87
  5. Step 5: Solve for x
    x = 202,392,067,177.87/659,946.12
  6. Step 6: Final answer
    x = 306,679.68

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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.