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Finding the Fourth Proportional to 487,153.94, 730,896.32 and 262,536.88

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Solution

The fourth proportional to 487,153.94, 730,896.32 and 262,536.88 is: 393,894.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,153.94 : 730,896.32 = 262,536.88 : x
  2. Step 2: Convert to fraction form
    487,153.94/730,896.32 = 262,536.88/x
  3. Step 3: Cross multiply
    487,153.94x = 730,896.32 × 262,536.88
  4. Step 4: Simplify right side
    487,153.94x = 191,887,239,456.28
  5. Step 5: Solve for x
    x = 191,887,239,456.28/487,153.94
  6. Step 6: Final answer
    x = 393,894.46

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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.