Home / 639,264.57-882,189.93-348,878.36

Finding the Fourth Proportional to 639,264.57, 882,189.93 and 348,878.36

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Solution

The fourth proportional to 639,264.57, 882,189.93 and 348,878.36 is: 481,454.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,264.57 : 882,189.93 = 348,878.36 : x
  2. Step 2: Convert to fraction form
    639,264.57/882,189.93 = 348,878.36/x
  3. Step 3: Cross multiply
    639,264.57x = 882,189.93 × 348,878.36
  4. Step 4: Simplify right side
    639,264.57x = 307,776,975,986.92
  5. Step 5: Solve for x
    x = 307,776,975,986.92/639,264.57
  6. Step 6: Final answer
    x = 481,454.77

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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.