Home / 959,272.25-1,438,570.59-319,402.22

Finding the Fourth Proportional to 959,272.25, 1,438,570.59 and 319,402.22

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Solution

The fourth proportional to 959,272.25, 1,438,570.59 and 319,402.22 is: 478,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,272.25 : 1,438,570.59 = 319,402.22 : x
  2. Step 2: Convert to fraction form
    959,272.25/1,438,570.59 = 319,402.22/x
  3. Step 3: Cross multiply
    959,272.25x = 1,438,570.59 × 319,402.22
  4. Step 4: Simplify right side
    959,272.25x = 459,482,632,879.86
  5. Step 5: Solve for x
    x = 459,482,632,879.86/959,272.25
  6. Step 6: Final answer
    x = 478,990.86

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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.