Home / 563,084.12-777,056.42-308,439.56

Finding the Fourth Proportional to 563,084.12, 777,056.42 and 308,439.56

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Solution

The fourth proportional to 563,084.12, 777,056.42 and 308,439.56 is: 425,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,084.12 : 777,056.42 = 308,439.56 : x
  2. Step 2: Convert to fraction form
    563,084.12/777,056.42 = 308,439.56/x
  3. Step 3: Cross multiply
    563,084.12x = 777,056.42 × 308,439.56
  4. Step 4: Simplify right side
    563,084.12x = 239,674,940,279.98
  5. Step 5: Solve for x
    x = 239,674,940,279.98/563,084.12
  6. Step 6: Final answer
    x = 425,646.78

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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.