Home / 1,242,834.72-1,862,959.32-843,507.96

Finding the Fourth Proportional to 1,242,834.72, 1,862,959.32 and 843,507.96

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Solution

The fourth proportional to 1,242,834.72, 1,862,959.32 and 843,507.96 is: 1,264,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,834.72 : 1,862,959.32 = 843,507.96 : x
  2. Step 2: Convert to fraction form
    1,242,834.72/1,862,959.32 = 843,507.96/x
  3. Step 3: Cross multiply
    1,242,834.72x = 1,862,959.32 × 843,507.96
  4. Step 4: Simplify right side
    1,242,834.72x = 1,571,421,015,576.19
  5. Step 5: Solve for x
    x = 1,571,421,015,576.19/1,242,834.72
  6. Step 6: Final answer
    x = 1,264,384.55

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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.