Home / 914,491.20-1,372,514.40-409,828.80

Finding the Fourth Proportional to 914,491.20, 1,372,514.40 and 409,828.80

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Solution

The fourth proportional to 914,491.20, 1,372,514.40 and 409,828.80 is: 615,091.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,491.20 : 1,372,514.40 = 409,828.80 : x
  2. Step 2: Convert to fraction form
    914,491.20/1,372,514.40 = 409,828.80/x
  3. Step 3: Cross multiply
    914,491.20x = 1,372,514.40 × 409,828.80
  4. Step 4: Simplify right side
    914,491.20x = 562,495,929,534.72
  5. Step 5: Solve for x
    x = 562,495,929,534.72/914,491.20
  6. Step 6: Final answer
    x = 615,091.68

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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.