Home / 644,523.54-889,412.28-358,061.10

Finding the Fourth Proportional to 644,523.54, 889,412.28 and 358,061.10

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Solution

The fourth proportional to 644,523.54, 889,412.28 and 358,061.10 is: 494,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,523.54 : 889,412.28 = 358,061.10 : x
  2. Step 2: Convert to fraction form
    644,523.54/889,412.28 = 358,061.10/x
  3. Step 3: Cross multiply
    644,523.54x = 889,412.28 × 358,061.10
  4. Step 4: Simplify right side
    644,523.54x = 318,463,939,330.31
  5. Step 5: Solve for x
    x = 318,463,939,330.31/644,523.54
  6. Step 6: Final answer
    x = 494,107.54

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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.