Home / 426,132.34-639,220.54-404,584.12

Finding the Fourth Proportional to 426,132.34, 639,220.54 and 404,584.12

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Solution

The fourth proportional to 426,132.34, 639,220.54 and 404,584.12 is: 606,897.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,132.34 : 639,220.54 = 404,584.12 : x
  2. Step 2: Convert to fraction form
    426,132.34/639,220.54 = 404,584.12/x
  3. Step 3: Cross multiply
    426,132.34x = 639,220.54 × 404,584.12
  4. Step 4: Simplify right side
    426,132.34x = 258,618,479,661.83
  5. Step 5: Solve for x
    x = 258,618,479,661.83/426,132.34
  6. Step 6: Final answer
    x = 606,897.10

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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.