Home / 563,623.36-777,806.40-308,968.96

Finding the Fourth Proportional to 563,623.36, 777,806.40 and 308,968.96

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Solution

The fourth proportional to 563,623.36, 777,806.40 and 308,968.96 is: 426,380.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,623.36 : 777,806.40 = 308,968.96 : x
  2. Step 2: Convert to fraction form
    563,623.36/777,806.40 = 308,968.96/x
  3. Step 3: Cross multiply
    563,623.36x = 777,806.40 × 308,968.96
  4. Step 4: Simplify right side
    563,623.36x = 240,318,034,489.34
  5. Step 5: Solve for x
    x = 240,318,034,489.34/563,623.36
  6. Step 6: Final answer
    x = 426,380.54

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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.