Home / 1,351,553.40-1,865,353.08-770,777.76

Finding the Fourth Proportional to 1,351,553.40, 1,865,353.08 and 770,777.76

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Solution

The fourth proportional to 1,351,553.40, 1,865,353.08 and 770,777.76 is: 1,063,792.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,553.40 : 1,865,353.08 = 770,777.76 : x
  2. Step 2: Convert to fraction form
    1,351,553.40/1,865,353.08 = 770,777.76/x
  3. Step 3: Cross multiply
    1,351,553.40x = 1,865,353.08 × 770,777.76
  4. Step 4: Simplify right side
    1,351,553.40x = 1,437,772,668,611.50
  5. Step 5: Solve for x
    x = 1,437,772,668,611.50/1,351,553.40
  6. Step 6: Final answer
    x = 1,063,792.72

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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.