Home / 1,213,688.40-1,817,422.20-896,427.60

Finding the Fourth Proportional to 1,213,688.40, 1,817,422.20 and 896,427.60

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Solution

The fourth proportional to 1,213,688.40, 1,817,422.20 and 896,427.60 is: 1,342,344.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,688.40 : 1,817,422.20 = 896,427.60 : x
  2. Step 2: Convert to fraction form
    1,213,688.40/1,817,422.20 = 896,427.60/x
  3. Step 3: Cross multiply
    1,213,688.40x = 1,817,422.20 × 896,427.60
  4. Step 4: Simplify right side
    1,213,688.40x = 1,629,187,420,932.72
  5. Step 5: Solve for x
    x = 1,629,187,420,932.72/1,213,688.40
  6. Step 6: Final answer
    x = 1,342,344.07

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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.