Home / 668,867.80-1,001,940.90-415,370.20

Finding the Fourth Proportional to 668,867.80, 1,001,940.90 and 415,370.20

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Solution

The fourth proportional to 668,867.80, 1,001,940.90 and 415,370.20 is: 622,210.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,867.80 : 1,001,940.90 = 415,370.20 : x
  2. Step 2: Convert to fraction form
    668,867.80/1,001,940.90 = 415,370.20/x
  3. Step 3: Cross multiply
    668,867.80x = 1,001,940.90 × 415,370.20
  4. Step 4: Simplify right side
    668,867.80x = 416,176,392,021.18
  5. Step 5: Solve for x
    x = 416,176,392,021.18/668,867.80
  6. Step 6: Final answer
    x = 622,210.24

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1.5x scale

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.