Home / 1,615,279.20-2,422,481.40-478,039.20

Finding the Fourth Proportional to 1,615,279.20, 2,422,481.40 and 478,039.20

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Solution

The fourth proportional to 1,615,279.20, 2,422,481.40 and 478,039.20 is: 716,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,279.20 : 2,422,481.40 = 478,039.20 : x
  2. Step 2: Convert to fraction form
    1,615,279.20/2,422,481.40 = 478,039.20/x
  3. Step 3: Cross multiply
    1,615,279.20x = 2,422,481.40 × 478,039.20
  4. Step 4: Simplify right side
    1,615,279.20x = 1,158,041,070,470.88
  5. Step 5: Solve for x
    x = 1,158,041,070,470.88/1,615,279.20
  6. Step 6: Final answer
    x = 716,929.35

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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.