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Finding the Fourth Proportional to 412,427.59, 618,688.12 and 370,047.29

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Solution

The fourth proportional to 412,427.59, 618,688.12 and 370,047.29 is: 555,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,427.59 : 618,688.12 = 370,047.29 : x
  2. Step 2: Convert to fraction form
    412,427.59/618,688.12 = 370,047.29/x
  3. Step 3: Cross multiply
    412,427.59x = 618,688.12 × 370,047.29
  4. Step 4: Simplify right side
    412,427.59x = 228,943,862,161.20
  5. Step 5: Solve for x
    x = 228,943,862,161.20/412,427.59
  6. Step 6: Final answer
    x = 555,112.87

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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.