Home / 986,612.76-1,479,319.86-386,855.36

Finding the Fourth Proportional to 986,612.76, 1,479,319.86 and 386,855.36

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Solution

The fourth proportional to 986,612.76, 1,479,319.86 and 386,855.36 is: 580,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,612.76 : 1,479,319.86 = 386,855.36 : x
  2. Step 2: Convert to fraction form
    986,612.76/1,479,319.86 = 386,855.36/x
  3. Step 3: Cross multiply
    986,612.76x = 1,479,319.86 × 386,855.36
  4. Step 4: Simplify right side
    986,612.76x = 572,282,816,995.45
  5. Step 5: Solve for x
    x = 572,282,816,995.45/986,612.76
  6. Step 6: Final answer
    x = 580,048.06

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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.