Home / 639,521.48-882,541.54-349,133.50

Finding the Fourth Proportional to 639,521.48, 882,541.54 and 349,133.50

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Solution

The fourth proportional to 639,521.48, 882,541.54 and 349,133.50 is: 481,805.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,521.48 : 882,541.54 = 349,133.50 : x
  2. Step 2: Convert to fraction form
    639,521.48/882,541.54 = 349,133.50/x
  3. Step 3: Cross multiply
    639,521.48x = 882,541.54 × 349,133.50
  4. Step 4: Simplify right side
    639,521.48x = 308,124,816,755.59
  5. Step 5: Solve for x
    x = 308,124,816,755.59/639,521.48
  6. Step 6: Final answer
    x = 481,805.27

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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.