Home / 563,439.30-777,541.77-308,789.88

Finding the Fourth Proportional to 563,439.30, 777,541.77 and 308,789.88

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Solution

The fourth proportional to 563,439.30, 777,541.77 and 308,789.88 is: 426,127.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,439.30 : 777,541.77 = 308,789.88 : x
  2. Step 2: Convert to fraction form
    563,439.30/777,541.77 = 308,789.88/x
  3. Step 3: Cross multiply
    563,439.30x = 777,541.77 × 308,789.88
  4. Step 4: Simplify right side
    563,439.30x = 240,097,029,853.29
  5. Step 5: Solve for x
    x = 240,097,029,853.29/563,439.30
  6. Step 6: Final answer
    x = 426,127.59

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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.