Home / 420,933.80-580,881.32-229,942.28

Finding the Fourth Proportional to 420,933.80, 580,881.32 and 229,942.28

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Solution

The fourth proportional to 420,933.80, 580,881.32 and 229,942.28 is: 317,316.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,933.80 : 580,881.32 = 229,942.28 : x
  2. Step 2: Convert to fraction form
    420,933.80/580,881.32 = 229,942.28/x
  3. Step 3: Cross multiply
    420,933.80x = 580,881.32 × 229,942.28
  4. Step 4: Simplify right side
    420,933.80x = 133,569,175,130.21
  5. Step 5: Solve for x
    x = 133,569,175,130.21/420,933.80
  6. Step 6: Final answer
    x = 317,316.35

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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.