Home / 880,975.20-1,321,808.40-320,066.40

Finding the Fourth Proportional to 880,975.20, 1,321,808.40 and 320,066.40

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Solution

The fourth proportional to 880,975.20, 1,321,808.40 and 320,066.40 is: 480,225.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,975.20 : 1,321,808.40 = 320,066.40 : x
  2. Step 2: Convert to fraction form
    880,975.20/1,321,808.40 = 320,066.40/x
  3. Step 3: Cross multiply
    880,975.20x = 1,321,808.40 × 320,066.40
  4. Step 4: Simplify right side
    880,975.20x = 423,066,456,077.76
  5. Step 5: Solve for x
    x = 423,066,456,077.76/880,975.20
  6. Step 6: Final answer
    x = 480,225.16

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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.