Home / 987,141.35-1,479,766.17-417,739.25

Finding the Fourth Proportional to 987,141.35, 1,479,766.17 and 417,739.25

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Solution

The fourth proportional to 987,141.35, 1,479,766.17 and 417,739.25 is: 626,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,141.35 : 1,479,766.17 = 417,739.25 : x
  2. Step 2: Convert to fraction form
    987,141.35/1,479,766.17 = 417,739.25/x
  3. Step 3: Cross multiply
    987,141.35x = 1,479,766.17 × 417,739.25
  4. Step 4: Simplify right side
    987,141.35x = 618,156,415,297.11
  5. Step 5: Solve for x
    x = 618,156,415,297.11/987,141.35
  6. Step 6: Final answer
    x = 626,208.61

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1.5x scale

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.