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Finding the Fourth Proportional to 563,074.80, 777,039.36 and 304,945.80

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Solution

The fourth proportional to 563,074.80, 777,039.36 and 304,945.80 is: 420,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,074.80 : 777,039.36 = 304,945.80 : x
  2. Step 2: Convert to fraction form
    563,074.80/777,039.36 = 304,945.80/x
  3. Step 3: Cross multiply
    563,074.80x = 777,039.36 × 304,945.80
  4. Step 4: Simplify right side
    563,074.80x = 236,954,889,266.69
  5. Step 5: Solve for x
    x = 236,954,889,266.69/563,074.80
  6. Step 6: Final answer
    x = 420,823.11

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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.