Home / 426,725.73-640,180.86-227,017.10

Finding the Fourth Proportional to 426,725.73, 640,180.86 and 227,017.10

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Solution

The fourth proportional to 426,725.73, 640,180.86 and 227,017.10 is: 340,574.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,725.73 : 640,180.86 = 227,017.10 : x
  2. Step 2: Convert to fraction form
    426,725.73/640,180.86 = 227,017.10/x
  3. Step 3: Cross multiply
    426,725.73x = 640,180.86 × 227,017.10
  4. Step 4: Simplify right side
    426,725.73x = 145,331,999,111.80
  5. Step 5: Solve for x
    x = 145,331,999,111.80/426,725.73
  6. Step 6: Final answer
    x = 340,574.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.