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Finding the Fourth Proportional to 563,339.22, 777,382.75 and 308,684.94

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Solution

The fourth proportional to 563,339.22, 777,382.75 and 308,684.94 is: 425,971.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,339.22 : 777,382.75 = 308,684.94 : x
  2. Step 2: Convert to fraction form
    563,339.22/777,382.75 = 308,684.94/x
  3. Step 3: Cross multiply
    563,339.22x = 777,382.75 × 308,684.94
  4. Step 4: Simplify right side
    563,339.22x = 239,966,347,540.79
  5. Step 5: Solve for x
    x = 239,966,347,540.79/563,339.22
  6. Step 6: Final answer
    x = 425,971.31

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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.