Home / 760,272.24-1,049,169.60-420,759.12

Finding the Fourth Proportional to 760,272.24, 1,049,169.60 and 420,759.12

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Solution

The fourth proportional to 760,272.24, 1,049,169.60 and 420,759.12 is: 580,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,272.24 : 1,049,169.60 = 420,759.12 : x
  2. Step 2: Convert to fraction form
    760,272.24/1,049,169.60 = 420,759.12/x
  3. Step 3: Cross multiply
    760,272.24x = 1,049,169.60 × 420,759.12
  4. Step 4: Simplify right side
    760,272.24x = 441,447,677,626.75
  5. Step 5: Solve for x
    x = 441,447,677,626.75/760,272.24
  6. Step 6: Final answer
    x = 580,644.21

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Double scale
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1.5x scale

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.