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Finding the Fourth Proportional to 525,679.80, 788,433.42 and 146,626.32

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Solution

The fourth proportional to 525,679.80, 788,433.42 and 146,626.32 is: 219,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,679.80 : 788,433.42 = 146,626.32 : x
  2. Step 2: Convert to fraction form
    525,679.80/788,433.42 = 146,626.32/x
  3. Step 3: Cross multiply
    525,679.80x = 788,433.42 × 146,626.32
  4. Step 4: Simplify right side
    525,679.80x = 115,605,090,939.61
  5. Step 5: Solve for x
    x = 115,605,090,939.61/525,679.80
  6. Step 6: Final answer
    x = 219,915.41

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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.