Home / 755,025-1,132,712.70-256,389.48

Finding the Fourth Proportional to 755,025, 1,132,712.70 and 256,389.48

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Solution

The fourth proportional to 755,025, 1,132,712.70 and 256,389.48 is: 384,643.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,025 : 1,132,712.70 = 256,389.48 : x
  2. Step 2: Convert to fraction form
    755,025/1,132,712.70 = 256,389.48/x
  3. Step 3: Cross multiply
    755,025x = 1,132,712.70 × 256,389.48
  4. Step 4: Simplify right side
    755,025x = 290,415,620,142.40
  5. Step 5: Solve for x
    x = 290,415,620,142.40/755,025
  6. Step 6: Final answer
    x = 384,643.71

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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.