Home / 563,678.22-845,439.57-311,424.78

Finding the Fourth Proportional to 563,678.22, 845,439.57 and 311,424.78

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Solution

The fourth proportional to 563,678.22, 845,439.57 and 311,424.78 is: 467,094.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,678.22 : 845,439.57 = 311,424.78 : x
  2. Step 2: Convert to fraction form
    563,678.22/845,439.57 = 311,424.78/x
  3. Step 3: Cross multiply
    563,678.22x = 845,439.57 × 311,424.78
  4. Step 4: Simplify right side
    563,678.22x = 263,290,832,090.55
  5. Step 5: Solve for x
    x = 263,290,832,090.55/563,678.22
  6. Step 6: Final answer
    x = 467,094.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.