Home / 760,375.26-1,049,551.56-438,300.72

Finding the Fourth Proportional to 760,375.26, 1,049,551.56 and 438,300.72

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Solution

The fourth proportional to 760,375.26, 1,049,551.56 and 438,300.72 is: 604,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,375.26 : 1,049,551.56 = 438,300.72 : x
  2. Step 2: Convert to fraction form
    760,375.26/1,049,551.56 = 438,300.72/x
  3. Step 3: Cross multiply
    760,375.26x = 1,049,551.56 × 438,300.72
  4. Step 4: Simplify right side
    760,375.26x = 460,019,204,425.12
  5. Step 5: Solve for x
    x = 460,019,204,425.12/760,375.26
  6. Step 6: Final answer
    x = 604,989.71

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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.