Home / 825,410.70-1,139,538.69-631,461.06

Finding the Fourth Proportional to 825,410.70, 1,139,538.69 and 631,461.06

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Solution

The fourth proportional to 825,410.70, 1,139,538.69 and 631,461.06 is: 871,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,410.70 : 1,139,538.69 = 631,461.06 : x
  2. Step 2: Convert to fraction form
    825,410.70/1,139,538.69 = 631,461.06/x
  3. Step 3: Cross multiply
    825,410.70x = 1,139,538.69 × 631,461.06
  4. Step 4: Simplify right side
    825,410.70x = 719,574,309,098.41
  5. Step 5: Solve for x
    x = 719,574,309,098.41/825,410.70
  6. Step 6: Final answer
    x = 871,777.30

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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.