Home / 899,436.41-1,241,225.49-491,538.44

Finding the Fourth Proportional to 899,436.41, 1,241,225.49 and 491,538.44

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Solution

The fourth proportional to 899,436.41, 1,241,225.49 and 491,538.44 is: 678,324.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,436.41 : 1,241,225.49 = 491,538.44 : x
  2. Step 2: Convert to fraction form
    899,436.41/1,241,225.49 = 491,538.44/x
  3. Step 3: Cross multiply
    899,436.41x = 1,241,225.49 × 491,538.44
  4. Step 4: Simplify right side
    899,436.41x = 610,110,041,042.84
  5. Step 5: Solve for x
    x = 610,110,041,042.84/899,436.41
  6. Step 6: Final answer
    x = 678,324.82

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Half scale
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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.