Home / 644,578.02-889,533.52-354,187.26

Finding the Fourth Proportional to 644,578.02, 889,533.52 and 354,187.26

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Solution

The fourth proportional to 644,578.02, 889,533.52 and 354,187.26 is: 488,787.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,578.02 : 889,533.52 = 354,187.26 : x
  2. Step 2: Convert to fraction form
    644,578.02/889,533.52 = 354,187.26/x
  3. Step 3: Cross multiply
    644,578.02x = 889,533.52 × 354,187.26
  4. Step 4: Simplify right side
    644,578.02x = 315,061,440,126.96
  5. Step 5: Solve for x
    x = 315,061,440,126.96/644,578.02
  6. Step 6: Final answer
    x = 488,787.13

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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.