Home / 986,029.62-1,478,895.72-312,023.40

Finding the Fourth Proportional to 986,029.62, 1,478,895.72 and 312,023.40

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Solution

The fourth proportional to 986,029.62, 1,478,895.72 and 312,023.40 is: 467,988.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,029.62 : 1,478,895.72 = 312,023.40 : x
  2. Step 2: Convert to fraction form
    986,029.62/1,478,895.72 = 312,023.40/x
  3. Step 3: Cross multiply
    986,029.62x = 1,478,895.72 × 312,023.40
  4. Step 4: Simplify right side
    986,029.62x = 461,450,070,799.85
  5. Step 5: Solve for x
    x = 461,450,070,799.85/986,029.62
  6. Step 6: Final answer
    x = 467,988.04

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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.