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Finding the Fourth Proportional to 684,137.88, 1,026,373.81 and 482,127.88

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Solution

The fourth proportional to 684,137.88, 1,026,373.81 and 482,127.88 is: 723,309.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,137.88 : 1,026,373.81 = 482,127.88 : x
  2. Step 2: Convert to fraction form
    684,137.88/1,026,373.81 = 482,127.88/x
  3. Step 3: Cross multiply
    684,137.88x = 1,026,373.81 × 482,127.88
  4. Step 4: Simplify right side
    684,137.88x = 494,843,429,102.82
  5. Step 5: Solve for x
    x = 494,843,429,102.82/684,137.88
  6. Step 6: Final answer
    x = 723,309.50

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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.