Home / 825,411.20-1,139,539.38-631,461.56

Finding the Fourth Proportional to 825,411.20, 1,139,539.38 and 631,461.56

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Solution

The fourth proportional to 825,411.20, 1,139,539.38 and 631,461.56 is: 871,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,411.20 : 1,139,539.38 = 631,461.56 : x
  2. Step 2: Convert to fraction form
    825,411.20/1,139,539.38 = 631,461.56/x
  3. Step 3: Cross multiply
    825,411.20x = 1,139,539.38 × 631,461.56
  4. Step 4: Simplify right side
    825,411.20x = 719,575,314,576.23
  5. Step 5: Solve for x
    x = 719,575,314,576.23/825,411.20
  6. Step 6: Final answer
    x = 871,777.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.