Home / 711,105.66-1,066,659.48-290,381.52

Finding the Fourth Proportional to 711,105.66, 1,066,659.48 and 290,381.52

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Solution

The fourth proportional to 711,105.66, 1,066,659.48 and 290,381.52 is: 435,572.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,105.66 : 1,066,659.48 = 290,381.52 : x
  2. Step 2: Convert to fraction form
    711,105.66/1,066,659.48 = 290,381.52/x
  3. Step 3: Cross multiply
    711,105.66x = 1,066,659.48 × 290,381.52
  4. Step 4: Simplify right side
    711,105.66x = 309,738,201,124.81
  5. Step 5: Solve for x
    x = 309,738,201,124.81/711,105.66
  6. Step 6: Final answer
    x = 435,572.68

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Similar ratio
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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.