Home / 644,558.02-889,513.29-372,711.22

Finding the Fourth Proportional to 644,558.02, 889,513.29 and 372,711.22

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Solution

The fourth proportional to 644,558.02, 889,513.29 and 372,711.22 is: 514,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,558.02 : 889,513.29 = 372,711.22 : x
  2. Step 2: Convert to fraction form
    644,558.02/889,513.29 = 372,711.22/x
  3. Step 3: Cross multiply
    644,558.02x = 889,513.29 × 372,711.22
  4. Step 4: Simplify right side
    644,558.02x = 331,531,583,522.11
  5. Step 5: Solve for x
    x = 331,531,583,522.11/644,558.02
  6. Step 6: Final answer
    x = 514,354.91

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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.