Home / 1,256,321.21-1,734,031.20-712,775.16

Finding the Fourth Proportional to 1,256,321.21, 1,734,031.20 and 712,775.16

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Solution

The fourth proportional to 1,256,321.21, 1,734,031.20 and 712,775.16 is: 983,804.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,321.21 : 1,734,031.20 = 712,775.16 : x
  2. Step 2: Convert to fraction form
    1,256,321.21/1,734,031.20 = 712,775.16/x
  3. Step 3: Cross multiply
    1,256,321.21x = 1,734,031.20 × 712,775.16
  4. Step 4: Simplify right side
    1,256,321.21x = 1,235,974,368,697.90
  5. Step 5: Solve for x
    x = 1,235,974,368,697.90/1,256,321.21
  6. Step 6: Final answer
    x = 983,804.43

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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.