Home / 420,924.80-580,888.72-229,941.36

Finding the Fourth Proportional to 420,924.80, 580,888.72 and 229,941.36

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Solution

The fourth proportional to 420,924.80, 580,888.72 and 229,941.36 is: 317,325.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,924.80 : 580,888.72 = 229,941.36 : x
  2. Step 2: Convert to fraction form
    420,924.80/580,888.72 = 229,941.36/x
  3. Step 3: Cross multiply
    420,924.80x = 580,888.72 × 229,941.36
  4. Step 4: Simplify right side
    420,924.80x = 133,570,342,285.46
  5. Step 5: Solve for x
    x = 133,570,342,285.46/420,924.80
  6. Step 6: Final answer
    x = 317,325.90

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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.