Home / 677,488.80-1,016,233.20-666,991.20

Finding the Fourth Proportional to 677,488.80, 1,016,233.20 and 666,991.20

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Solution

The fourth proportional to 677,488.80, 1,016,233.20 and 666,991.20 is: 1,000,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,488.80 : 1,016,233.20 = 666,991.20 : x
  2. Step 2: Convert to fraction form
    677,488.80/1,016,233.20 = 666,991.20/x
  3. Step 3: Cross multiply
    677,488.80x = 1,016,233.20 × 666,991.20
  4. Step 4: Simplify right side
    677,488.80x = 677,818,601,547.84
  5. Step 5: Solve for x
    x = 677,818,601,547.84/677,488.80
  6. Step 6: Final answer
    x = 1,000,486.80

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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.