Home / 711,501.92-1,066,749.60-356,261.12

Finding the Fourth Proportional to 711,501.92, 1,066,749.60 and 356,261.12

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Solution

The fourth proportional to 711,501.92, 1,066,749.60 and 356,261.12 is: 534,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,501.92 : 1,066,749.60 = 356,261.12 : x
  2. Step 2: Convert to fraction form
    711,501.92/1,066,749.60 = 356,261.12/x
  3. Step 3: Cross multiply
    711,501.92x = 1,066,749.60 × 356,261.12
  4. Step 4: Simplify right side
    711,501.92x = 380,041,407,255.55
  5. Step 5: Solve for x
    x = 380,041,407,255.55/711,501.92
  6. Step 6: Final answer
    x = 534,139.68

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