Home / 987,300.16-1,480,780.89-313,231.22

Finding the Fourth Proportional to 987,300.16, 1,480,780.89 and 313,231.22

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Solution

The fourth proportional to 987,300.16, 1,480,780.89 and 313,231.22 is: 469,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,300.16 : 1,480,780.89 = 313,231.22 : x
  2. Step 2: Convert to fraction form
    987,300.16/1,480,780.89 = 313,231.22/x
  3. Step 3: Cross multiply
    987,300.16x = 1,480,780.89 × 313,231.22
  4. Step 4: Simplify right side
    987,300.16x = 463,826,797,323.48
  5. Step 5: Solve for x
    x = 463,826,797,323.48/987,300.16
  6. Step 6: Final answer
    x = 469,793.10

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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.