Home / 563,933.28-778,228.32-309,285.48

Finding the Fourth Proportional to 563,933.28, 778,228.32 and 309,285.48

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Solution

The fourth proportional to 563,933.28, 778,228.32 and 309,285.48 is: 426,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,933.28 : 778,228.32 = 309,285.48 : x
  2. Step 2: Convert to fraction form
    563,933.28/778,228.32 = 309,285.48/x
  3. Step 3: Cross multiply
    563,933.28x = 778,228.32 × 309,285.48
  4. Step 4: Simplify right side
    563,933.28x = 240,694,719,500.79
  5. Step 5: Solve for x
    x = 240,694,719,500.79/563,933.28
  6. Step 6: Final answer
    x = 426,814.18

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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.