Home / 639,246.56-882,165.40-348,860.41

Finding the Fourth Proportional to 639,246.56, 882,165.40 and 348,860.41

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Solution

The fourth proportional to 639,246.56, 882,165.40 and 348,860.41 is: 481,430.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,246.56 : 882,165.40 = 348,860.41 : x
  2. Step 2: Convert to fraction form
    639,246.56/882,165.40 = 348,860.41/x
  3. Step 3: Cross multiply
    639,246.56x = 882,165.40 × 348,860.41
  4. Step 4: Simplify right side
    639,246.56x = 307,752,580,054.25
  5. Step 5: Solve for x
    x = 307,752,580,054.25/639,246.56
  6. Step 6: Final answer
    x = 481,430.17

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1.5x scale

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.