Home / 985,990.62-1,479,149.52-346,128.49

Finding the Fourth Proportional to 985,990.62, 1,479,149.52 and 346,128.49

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Solution

The fourth proportional to 985,990.62, 1,479,149.52 and 346,128.49 is: 519,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,990.62 : 1,479,149.52 = 346,128.49 : x
  2. Step 2: Convert to fraction form
    985,990.62/1,479,149.52 = 346,128.49/x
  3. Step 3: Cross multiply
    985,990.62x = 1,479,149.52 × 346,128.49
  4. Step 4: Simplify right side
    985,990.62x = 511,975,789,841.83
  5. Step 5: Solve for x
    x = 511,975,789,841.83/985,990.62
  6. Step 6: Final answer
    x = 519,250.16

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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.