Home / 985,321.14-1,359,776.76-571,826.10

Finding the Fourth Proportional to 985,321.14, 1,359,776.76 and 571,826.10

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Solution

The fourth proportional to 985,321.14, 1,359,776.76 and 571,826.10 is: 789,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,321.14 : 1,359,776.76 = 571,826.10 : x
  2. Step 2: Convert to fraction form
    985,321.14/1,359,776.76 = 571,826.10/x
  3. Step 3: Cross multiply
    985,321.14x = 1,359,776.76 × 571,826.10
  4. Step 4: Simplify right side
    985,321.14x = 777,555,841,541.44
  5. Step 5: Solve for x
    x = 777,555,841,541.44/985,321.14
  6. Step 6: Final answer
    x = 789,139.51

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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.