Home / 510,827.13-765,551.79-258,285.78

Finding the Fourth Proportional to 510,827.13, 765,551.79 and 258,285.78

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Solution

The fourth proportional to 510,827.13, 765,551.79 and 258,285.78 is: 387,080.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,827.13 : 765,551.79 = 258,285.78 : x
  2. Step 2: Convert to fraction form
    510,827.13/765,551.79 = 258,285.78/x
  3. Step 3: Cross multiply
    510,827.13x = 765,551.79 × 258,285.78
  4. Step 4: Simplify right side
    510,827.13x = 197,731,141,210.55
  5. Step 5: Solve for x
    x = 197,731,141,210.55/510,827.13
  6. Step 6: Final answer
    x = 387,080.34

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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.