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Finding the Fourth Proportional to 563,162.52, 777,183.72 and 308,513.64

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Solution

The fourth proportional to 563,162.52, 777,183.72 and 308,513.64 is: 425,759.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,162.52 : 777,183.72 = 308,513.64 : x
  2. Step 2: Convert to fraction form
    563,162.52/777,183.72 = 308,513.64/x
  3. Step 3: Cross multiply
    563,162.52x = 777,183.72 × 308,513.64
  4. Step 4: Simplify right side
    563,162.52x = 239,771,778,405.94
  5. Step 5: Solve for x
    x = 239,771,778,405.94/563,162.52
  6. Step 6: Final answer
    x = 425,759.47

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1.5x scale

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.