Home / 1,077,291.32-1,615,934.28-319,191.80

Finding the Fourth Proportional to 1,077,291.32, 1,615,934.28 and 319,191.80

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Solution

The fourth proportional to 1,077,291.32, 1,615,934.28 and 319,191.80 is: 478,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,291.32 : 1,615,934.28 = 319,191.80 : x
  2. Step 2: Convert to fraction form
    1,077,291.32/1,615,934.28 = 319,191.80/x
  3. Step 3: Cross multiply
    1,077,291.32x = 1,615,934.28 × 319,191.80
  4. Step 4: Simplify right side
    1,077,291.32x = 515,792,971,514.90
  5. Step 5: Solve for x
    x = 515,792,971,514.90/1,077,291.32
  6. Step 6: Final answer
    x = 478,786.90

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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.