Home / 851,287.32-1,174,819.95-469,313.19

Finding the Fourth Proportional to 851,287.32, 1,174,819.95 and 469,313.19

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Solution

The fourth proportional to 851,287.32, 1,174,819.95 and 469,313.19 is: 647,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,287.32 : 1,174,819.95 = 469,313.19 : x
  2. Step 2: Convert to fraction form
    851,287.32/1,174,819.95 = 469,313.19/x
  3. Step 3: Cross multiply
    851,287.32x = 1,174,819.95 × 469,313.19
  4. Step 4: Simplify right side
    851,287.32x = 551,358,498,410.14
  5. Step 5: Solve for x
    x = 551,358,498,410.14/851,287.32
  6. Step 6: Final answer
    x = 647,676.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.