Home / 1,064,845.10-1,471,040.78-921,356.03

Finding the Fourth Proportional to 1,064,845.10, 1,471,040.78 and 921,356.03

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Solution

The fourth proportional to 1,064,845.10, 1,471,040.78 and 921,356.03 is: 1,272,816.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,845.10 : 1,471,040.78 = 921,356.03 : x
  2. Step 2: Convert to fraction form
    1,064,845.10/1,471,040.78 = 921,356.03/x
  3. Step 3: Cross multiply
    1,064,845.10x = 1,471,040.78 × 921,356.03
  4. Step 4: Simplify right side
    1,064,845.10x = 1,355,352,293,028.90
  5. Step 5: Solve for x
    x = 1,355,352,293,028.90/1,064,845.10
  6. Step 6: Final answer
    x = 1,272,816.39

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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.