Home / 420,312.66-580,033.38-229,330.08

Finding the Fourth Proportional to 420,312.66, 580,033.38 and 229,330.08

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Solution

The fourth proportional to 420,312.66, 580,033.38 and 229,330.08 is: 316,476.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,312.66 : 580,033.38 = 229,330.08 : x
  2. Step 2: Convert to fraction form
    420,312.66/580,033.38 = 229,330.08/x
  3. Step 3: Cross multiply
    420,312.66x = 580,033.38 × 229,330.08
  4. Step 4: Simplify right side
    420,312.66x = 133,019,101,438.07
  5. Step 5: Solve for x
    x = 133,019,101,438.07/420,312.66
  6. Step 6: Final answer
    x = 316,476.55

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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.