Home / 880,530.50-1,215,132.09-478,122.50

Finding the Fourth Proportional to 880,530.50, 1,215,132.09 and 478,122.50

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Solution

The fourth proportional to 880,530.50, 1,215,132.09 and 478,122.50 is: 659,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,530.50 : 1,215,132.09 = 478,122.50 : x
  2. Step 2: Convert to fraction form
    880,530.50/1,215,132.09 = 478,122.50/x
  3. Step 3: Cross multiply
    880,530.50x = 1,215,132.09 × 478,122.50
  4. Step 4: Simplify right side
    880,530.50x = 580,981,992,701.03
  5. Step 5: Solve for x
    x = 580,981,992,701.03/880,530.50
  6. Step 6: Final answer
    x = 659,809.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.