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Finding the Fourth Proportional to 563,056.92, 777,028.68 and 308,391.71

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Solution

The fourth proportional to 563,056.92, 777,028.68 and 308,391.71 is: 425,586.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,056.92 : 777,028.68 = 308,391.71 : x
  2. Step 2: Convert to fraction form
    563,056.92/777,028.68 = 308,391.71/x
  3. Step 3: Cross multiply
    563,056.92x = 777,028.68 × 308,391.71
  4. Step 4: Simplify right side
    563,056.92x = 239,629,199,459.10
  5. Step 5: Solve for x
    x = 239,629,199,459.10/563,056.92
  6. Step 6: Final answer
    x = 425,586.10

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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.