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Finding the Fourth Proportional to 893,757.80, 1,340,636.70 and 610,322.60

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Solution

The fourth proportional to 893,757.80, 1,340,636.70 and 610,322.60 is: 915,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,757.80 : 1,340,636.70 = 610,322.60 : x
  2. Step 2: Convert to fraction form
    893,757.80/1,340,636.70 = 610,322.60/x
  3. Step 3: Cross multiply
    893,757.80x = 1,340,636.70 × 610,322.60
  4. Step 4: Simplify right side
    893,757.80x = 818,220,876,399.42
  5. Step 5: Solve for x
    x = 818,220,876,399.42/893,757.80
  6. Step 6: Final answer
    x = 915,483.90

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.