Home / 426,344.13-639,590.07-173,762.03

Finding the Fourth Proportional to 426,344.13, 639,590.07 and 173,762.03

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Solution

The fourth proportional to 426,344.13, 639,590.07 and 173,762.03 is: 260,673.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,344.13 : 639,590.07 = 173,762.03 : x
  2. Step 2: Convert to fraction form
    426,344.13/639,590.07 = 173,762.03/x
  3. Step 3: Cross multiply
    426,344.13x = 639,590.07 × 173,762.03
  4. Step 4: Simplify right side
    426,344.13x = 111,136,467,261.59
  5. Step 5: Solve for x
    x = 111,136,467,261.59/426,344.13
  6. Step 6: Final answer
    x = 260,673.15

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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.