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Finding the Fourth Proportional to 604,041.20, 906,040.80 and 154,765.80

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Solution

The fourth proportional to 604,041.20, 906,040.80 and 154,765.80 is: 232,143.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,041.20 : 906,040.80 = 154,765.80 : x
  2. Step 2: Convert to fraction form
    604,041.20/906,040.80 = 154,765.80/x
  3. Step 3: Cross multiply
    604,041.20x = 906,040.80 × 154,765.80
  4. Step 4: Simplify right side
    604,041.20x = 140,224,129,244.64
  5. Step 5: Solve for x
    x = 140,224,129,244.64/604,041.20
  6. Step 6: Final answer
    x = 232,143.32

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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.