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Finding the Fourth Proportional to 555,792, 766,993.46 and 301,143.18

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Solution

The fourth proportional to 555,792, 766,993.46 and 301,143.18 is: 415,577.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,792 : 766,993.46 = 301,143.18 : x
  2. Step 2: Convert to fraction form
    555,792/766,993.46 = 301,143.18/x
  3. Step 3: Cross multiply
    555,792x = 766,993.46 × 301,143.18
  4. Step 4: Simplify right side
    555,792x = 230,974,849,583.60
  5. Step 5: Solve for x
    x = 230,974,849,583.60/555,792
  6. Step 6: Final answer
    x = 415,577.86

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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.