Home / 563,695.44-777,899.52-309,041.28

Finding the Fourth Proportional to 563,695.44, 777,899.52 and 309,041.28

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Solution

The fourth proportional to 563,695.44, 777,899.52 and 309,041.28 is: 426,476.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,695.44 : 777,899.52 = 309,041.28 : x
  2. Step 2: Convert to fraction form
    563,695.44/777,899.52 = 309,041.28/x
  3. Step 3: Cross multiply
    563,695.44x = 777,899.52 × 309,041.28
  4. Step 4: Simplify right side
    563,695.44x = 240,403,063,372.19
  5. Step 5: Solve for x
    x = 240,403,063,372.19/563,695.44
  6. Step 6: Final answer
    x = 426,476.86

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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.