Home / 563,679.69-777,926.93-309,080.09

Finding the Fourth Proportional to 563,679.69, 777,926.93 and 309,080.09

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Solution

The fourth proportional to 563,679.69, 777,926.93 and 309,080.09 is: 426,557.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,679.69 : 777,926.93 = 309,080.09 : x
  2. Step 2: Convert to fraction form
    563,679.69/777,926.93 = 309,080.09/x
  3. Step 3: Cross multiply
    563,679.69x = 777,926.93 × 309,080.09
  4. Step 4: Simplify right side
    563,679.69x = 240,441,722,420.89
  5. Step 5: Solve for x
    x = 240,441,722,420.89/563,679.69
  6. Step 6: Final answer
    x = 426,557.36

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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.