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Finding the Fourth Proportional to 577,833.40, 867,009.30 and 262,127.80

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Solution

The fourth proportional to 577,833.40, 867,009.30 and 262,127.80 is: 393,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,833.40 : 867,009.30 = 262,127.80 : x
  2. Step 2: Convert to fraction form
    577,833.40/867,009.30 = 262,127.80/x
  3. Step 3: Cross multiply
    577,833.40x = 867,009.30 × 262,127.80
  4. Step 4: Simplify right side
    577,833.40x = 227,267,240,388.54
  5. Step 5: Solve for x
    x = 227,267,240,388.54/577,833.40
  6. Step 6: Final answer
    x = 393,309.28

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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.