Home / 644,587.60-889,478.82-372,673.02

Finding the Fourth Proportional to 644,587.60, 889,478.82 and 372,673.02

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Solution

The fourth proportional to 644,587.60, 889,478.82 and 372,673.02 is: 514,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,587.60 : 889,478.82 = 372,673.02 : x
  2. Step 2: Convert to fraction form
    644,587.60/889,478.82 = 372,673.02/x
  3. Step 3: Cross multiply
    644,587.60x = 889,478.82 × 372,673.02
  4. Step 4: Simplify right side
    644,587.60x = 331,484,758,075.44
  5. Step 5: Solve for x
    x = 331,484,758,075.44/644,587.60
  6. Step 6: Final answer
    x = 514,258.66

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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.