Home / 420,937.80-580,886.84-229,946.28

Finding the Fourth Proportional to 420,937.80, 580,886.84 and 229,946.28

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Solution

The fourth proportional to 420,937.80, 580,886.84 and 229,946.28 is: 317,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,937.80 : 580,886.84 = 229,946.28 : x
  2. Step 2: Convert to fraction form
    420,937.80/580,886.84 = 229,946.28/x
  3. Step 3: Cross multiply
    420,937.80x = 580,886.84 × 229,946.28
  4. Step 4: Simplify right side
    420,937.80x = 133,572,767,958.96
  5. Step 5: Solve for x
    x = 133,572,767,958.96/420,937.80
  6. Step 6: Final answer
    x = 317,321.87

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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.