Home / 711,119.88-1,066,680.86-290,395.80

Finding the Fourth Proportional to 711,119.88, 1,066,680.86 and 290,395.80

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Solution

The fourth proportional to 711,119.88, 1,066,680.86 and 290,395.80 is: 435,594.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,119.88 : 1,066,680.86 = 290,395.80 : x
  2. Step 2: Convert to fraction form
    711,119.88/1,066,680.86 = 290,395.80/x
  3. Step 3: Cross multiply
    711,119.88x = 1,066,680.86 × 290,395.80
  4. Step 4: Simplify right side
    711,119.88x = 309,759,640,232.41
  5. Step 5: Solve for x
    x = 309,759,640,232.41/711,119.88
  6. Step 6: Final answer
    x = 435,594.12

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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.