Home / 639,532.02-882,548.78-353,045.96

Finding the Fourth Proportional to 639,532.02, 882,548.78 and 353,045.96

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Solution

The fourth proportional to 639,532.02, 882,548.78 and 353,045.96 is: 487,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,532.02 : 882,548.78 = 353,045.96 : x
  2. Step 2: Convert to fraction form
    639,532.02/882,548.78 = 353,045.96/x
  3. Step 3: Cross multiply
    639,532.02x = 882,548.78 × 353,045.96
  4. Step 4: Simplify right side
    639,532.02x = 311,580,278,413.51
  5. Step 5: Solve for x
    x = 311,580,278,413.51/639,532.02
  6. Step 6: Final answer
    x = 487,200.43

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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.