Home / 767,706.26-1,059,436.06-428,196.38

Finding the Fourth Proportional to 767,706.26, 1,059,436.06 and 428,196.38

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Solution

The fourth proportional to 767,706.26, 1,059,436.06 and 428,196.38 is: 590,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,706.26 : 1,059,436.06 = 428,196.38 : x
  2. Step 2: Convert to fraction form
    767,706.26/1,059,436.06 = 428,196.38/x
  3. Step 3: Cross multiply
    767,706.26x = 1,059,436.06 × 428,196.38
  4. Step 4: Simplify right side
    767,706.26x = 453,646,685,733.46
  5. Step 5: Solve for x
    x = 453,646,685,733.46/767,706.26
  6. Step 6: Final answer
    x = 590,911.80

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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.