Home / 976,813.80-1,465,220.70-266,913.60

Finding the Fourth Proportional to 976,813.80, 1,465,220.70 and 266,913.60

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Solution

The fourth proportional to 976,813.80, 1,465,220.70 and 266,913.60 is: 400,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,813.80 : 1,465,220.70 = 266,913.60 : x
  2. Step 2: Convert to fraction form
    976,813.80/1,465,220.70 = 266,913.60/x
  3. Step 3: Cross multiply
    976,813.80x = 1,465,220.70 × 266,913.60
  4. Step 4: Simplify right side
    976,813.80x = 391,087,331,831.52
  5. Step 5: Solve for x
    x = 391,087,331,831.52/976,813.80
  6. Step 6: Final answer
    x = 400,370.40

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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.