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Finding the Fourth Proportional to 604,265.91, 906,399.08 and 154,986.78

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Solution

The fourth proportional to 604,265.91, 906,399.08 and 154,986.78 is: 232,480.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,265.91 : 906,399.08 = 154,986.78 : x
  2. Step 2: Convert to fraction form
    604,265.91/906,399.08 = 154,986.78/x
  3. Step 3: Cross multiply
    604,265.91x = 906,399.08 × 154,986.78
  4. Step 4: Simplify right side
    604,265.91x = 140,479,878,009.43
  5. Step 5: Solve for x
    x = 140,479,878,009.43/604,265.91
  6. Step 6: Final answer
    x = 232,480.23

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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.