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Finding the Fourth Proportional to 786,455.76, 1,179,679.98 and 246,751.54

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Solution

The fourth proportional to 786,455.76, 1,179,679.98 and 246,751.54 is: 370,126.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,455.76 : 1,179,679.98 = 246,751.54 : x
  2. Step 2: Convert to fraction form
    786,455.76/1,179,679.98 = 246,751.54/x
  3. Step 3: Cross multiply
    786,455.76x = 1,179,679.98 × 246,751.54
  4. Step 4: Simplify right side
    786,455.76x = 291,087,851,772.17
  5. Step 5: Solve for x
    x = 291,087,851,772.17/786,455.76
  6. Step 6: Final answer
    x = 370,126.16

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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.