Home / 858,887.55-1,288,331.33-785,404.35

Finding the Fourth Proportional to 858,887.55, 1,288,331.33 and 785,404.35

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Solution

The fourth proportional to 858,887.55, 1,288,331.33 and 785,404.35 is: 1,178,106.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,887.55 : 1,288,331.33 = 785,404.35 : x
  2. Step 2: Convert to fraction form
    858,887.55/1,288,331.33 = 785,404.35/x
  3. Step 3: Cross multiply
    858,887.55x = 1,288,331.33 × 785,404.35
  4. Step 4: Simplify right side
    858,887.55x = 1,011,861,026,896.26
  5. Step 5: Solve for x
    x = 1,011,861,026,896.26/858,887.55
  6. Step 6: Final answer
    x = 1,178,106.53

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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.