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Finding the Fourth Proportional to 654,967.66, 903,807.03 and 368,432.59

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Solution

The fourth proportional to 654,967.66, 903,807.03 and 368,432.59 is: 508,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,967.66 : 903,807.03 = 368,432.59 : x
  2. Step 2: Convert to fraction form
    654,967.66/903,807.03 = 368,432.59/x
  3. Step 3: Cross multiply
    654,967.66x = 903,807.03 × 368,432.59
  4. Step 4: Simplify right side
    654,967.66x = 332,991,964,923.11
  5. Step 5: Solve for x
    x = 332,991,964,923.11/654,967.66
  6. Step 6: Final answer
    x = 508,409.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.