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Finding the Fourth Proportional to 604,024.80, 906,328.80 and 426,148.80

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Solution

The fourth proportional to 604,024.80, 906,328.80 and 426,148.80 is: 639,428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,024.80 : 906,328.80 = 426,148.80 : x
  2. Step 2: Convert to fraction form
    604,024.80/906,328.80 = 426,148.80/x
  3. Step 3: Cross multiply
    604,024.80x = 906,328.80 × 426,148.80
  4. Step 4: Simplify right side
    604,024.80x = 386,230,930,525.44
  5. Step 5: Solve for x
    x = 386,230,930,525.44/604,024.80
  6. Step 6: Final answer
    x = 639,428.93

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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.