Home / 770,209.52-1,155,587.90-343,706.56

Finding the Fourth Proportional to 770,209.52, 1,155,587.90 and 343,706.56

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Solution

The fourth proportional to 770,209.52, 1,155,587.90 and 343,706.56 is: 515,681.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,209.52 : 1,155,587.90 = 343,706.56 : x
  2. Step 2: Convert to fraction form
    770,209.52/1,155,587.90 = 343,706.56/x
  3. Step 3: Cross multiply
    770,209.52x = 1,155,587.90 × 343,706.56
  4. Step 4: Simplify right side
    770,209.52x = 397,183,141,886.62
  5. Step 5: Solve for x
    x = 397,183,141,886.62/770,209.52
  6. Step 6: Final answer
    x = 515,681.94

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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.