Home / 986,479.80-1,478,115.90-892,001.40

Finding the Fourth Proportional to 986,479.80, 1,478,115.90 and 892,001.40

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Solution

The fourth proportional to 986,479.80, 1,478,115.90 and 892,001.40 is: 1,336,551.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,479.80 : 1,478,115.90 = 892,001.40 : x
  2. Step 2: Convert to fraction form
    986,479.80/1,478,115.90 = 892,001.40/x
  3. Step 3: Cross multiply
    986,479.80x = 1,478,115.90 × 892,001.40
  4. Step 4: Simplify right side
    986,479.80x = 1,318,481,452,162.26
  5. Step 5: Solve for x
    x = 1,318,481,452,162.26/986,479.80
  6. Step 6: Final answer
    x = 1,336,551.90

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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.