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Finding the Fourth Proportional to 425,689.02, 638,102.34 and 276,024.24

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Solution

The fourth proportional to 425,689.02, 638,102.34 and 276,024.24 is: 413,756.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,689.02 : 638,102.34 = 276,024.24 : x
  2. Step 2: Convert to fraction form
    425,689.02/638,102.34 = 276,024.24/x
  3. Step 3: Cross multiply
    425,689.02x = 638,102.34 × 276,024.24
  4. Step 4: Simplify right side
    425,689.02x = 176,131,713,440.72
  5. Step 5: Solve for x
    x = 176,131,713,440.72/425,689.02
  6. Step 6: Final answer
    x = 413,756.77

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1.5x scale

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.