Home / 986,621.40-1,479,932.10-785,854.80

Finding the Fourth Proportional to 986,621.40, 1,479,932.10 and 785,854.80

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Solution

The fourth proportional to 986,621.40, 1,479,932.10 and 785,854.80 is: 1,178,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,621.40 : 1,479,932.10 = 785,854.80 : x
  2. Step 2: Convert to fraction form
    986,621.40/1,479,932.10 = 785,854.80/x
  3. Step 3: Cross multiply
    986,621.40x = 1,479,932.10 × 785,854.80
  4. Step 4: Simplify right side
    986,621.40x = 1,163,011,744,459.08
  5. Step 5: Solve for x
    x = 1,163,011,744,459.08/986,621.40
  6. Step 6: Final answer
    x = 1,178,782.20

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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.