Home / 563,397.78-777,495.06-308,743.50

Finding the Fourth Proportional to 563,397.78, 777,495.06 and 308,743.50

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Solution

The fourth proportional to 563,397.78, 777,495.06 and 308,743.50 is: 426,069.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,397.78 : 777,495.06 = 308,743.50 : x
  2. Step 2: Convert to fraction form
    563,397.78/777,495.06 = 308,743.50/x
  3. Step 3: Cross multiply
    563,397.78x = 777,495.06 × 308,743.50
  4. Step 4: Simplify right side
    563,397.78x = 240,046,546,057.11
  5. Step 5: Solve for x
    x = 240,046,546,057.11/563,397.78
  6. Step 6: Final answer
    x = 426,069.39

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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.