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Finding the Fourth Proportional to 567,998.71, 783,838.17 and 313,349.90

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Solution

The fourth proportional to 567,998.71, 783,838.17 and 313,349.90 is: 432,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,998.71 : 783,838.17 = 313,349.90 : x
  2. Step 2: Convert to fraction form
    567,998.71/783,838.17 = 313,349.90/x
  3. Step 3: Cross multiply
    567,998.71x = 783,838.17 × 313,349.90
  4. Step 4: Simplify right side
    567,998.71x = 245,615,612,185.68
  5. Step 5: Solve for x
    x = 245,615,612,185.68/567,998.71
  6. Step 6: Final answer
    x = 432,422.84

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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.