Home / 2,825,420.70-4,238,131.05-906,328.20

Finding the Fourth Proportional to 2,825,420.70, 4,238,131.05 and 906,328.20

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Solution

The fourth proportional to 2,825,420.70, 4,238,131.05 and 906,328.20 is: 1,359,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825,420.70 : 4,238,131.05 = 906,328.20 : x
  2. Step 2: Convert to fraction form
    2,825,420.70/4,238,131.05 = 906,328.20/x
  3. Step 3: Cross multiply
    2,825,420.70x = 4,238,131.05 × 906,328.20
  4. Step 4: Simplify right side
    2,825,420.70x = 3,841,137,685,910.61
  5. Step 5: Solve for x
    x = 3,841,137,685,910.61/2,825,420.70
  6. Step 6: Final answer
    x = 1,359,492.30

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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.