Home / 976,765.80-1,465,148.70-266,865.60

Finding the Fourth Proportional to 976,765.80, 1,465,148.70 and 266,865.60

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Solution

The fourth proportional to 976,765.80, 1,465,148.70 and 266,865.60 is: 400,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,765.80 : 1,465,148.70 = 266,865.60 : x
  2. Step 2: Convert to fraction form
    976,765.80/1,465,148.70 = 266,865.60/x
  3. Step 3: Cross multiply
    976,765.80x = 1,465,148.70 × 266,865.60
  4. Step 4: Simplify right side
    976,765.80x = 390,997,786,914.72
  5. Step 5: Solve for x
    x = 390,997,786,914.72/976,765.80
  6. Step 6: Final answer
    x = 400,298.40

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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.