Home / 1,187,047.02-1,638,872.55-824,354.94

Finding the Fourth Proportional to 1,187,047.02, 1,638,872.55 and 824,354.94

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Solution

The fourth proportional to 1,187,047.02, 1,638,872.55 and 824,354.94 is: 1,138,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,047.02 : 1,638,872.55 = 824,354.94 : x
  2. Step 2: Convert to fraction form
    1,187,047.02/1,638,872.55 = 824,354.94/x
  3. Step 3: Cross multiply
    1,187,047.02x = 1,638,872.55 × 824,354.94
  4. Step 4: Simplify right side
    1,187,047.02x = 1,351,012,682,622.90
  5. Step 5: Solve for x
    x = 1,351,012,682,622.90/1,187,047.02
  6. Step 6: Final answer
    x = 1,138,129.04

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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.