Home / 421,921.71-581,702.04-268,904.07

Finding the Fourth Proportional to 421,921.71, 581,702.04 and 268,904.07

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Solution

The fourth proportional to 421,921.71, 581,702.04 and 268,904.07 is: 370,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,921.71 : 581,702.04 = 268,904.07 : x
  2. Step 2: Convert to fraction form
    421,921.71/581,702.04 = 268,904.07/x
  3. Step 3: Cross multiply
    421,921.71x = 581,702.04 × 268,904.07
  4. Step 4: Simplify right side
    421,921.71x = 156,422,046,083.30
  5. Step 5: Solve for x
    x = 156,422,046,083.30/421,921.71
  6. Step 6: Final answer
    x = 370,737.14

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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.