Home / 999,209.50-1,379,040.52-569,391.10

Finding the Fourth Proportional to 999,209.50, 1,379,040.52 and 569,391.10

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Solution

The fourth proportional to 999,209.50, 1,379,040.52 and 569,391.10 is: 785,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,209.50 : 1,379,040.52 = 569,391.10 : x
  2. Step 2: Convert to fraction form
    999,209.50/1,379,040.52 = 569,391.10/x
  3. Step 3: Cross multiply
    999,209.50x = 1,379,040.52 × 569,391.10
  4. Step 4: Simplify right side
    999,209.50x = 785,213,398,627.37
  5. Step 5: Solve for x
    x = 785,213,398,627.37/999,209.50
  6. Step 6: Final answer
    x = 785,834.60

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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.