Home / 910,302.82-1,256,220.55-496,843.41

Finding the Fourth Proportional to 910,302.82, 1,256,220.55 and 496,843.41

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Solution

The fourth proportional to 910,302.82, 1,256,220.55 and 496,843.41 is: 685,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,302.82 : 1,256,220.55 = 496,843.41 : x
  2. Step 2: Convert to fraction form
    910,302.82/1,256,220.55 = 496,843.41/x
  3. Step 3: Cross multiply
    910,302.82x = 1,256,220.55 × 496,843.41
  4. Step 4: Simplify right side
    910,302.82x = 624,144,899,670.53
  5. Step 5: Solve for x
    x = 624,144,899,670.53/910,302.82
  6. Step 6: Final answer
    x = 685,645.36

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Double scale
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Similar ratio
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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.