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Finding the Fourth Proportional to 560,859.75, 773,982.42 and 306,210.94

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Solution

The fourth proportional to 560,859.75, 773,982.42 and 306,210.94 is: 422,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,859.75 : 773,982.42 = 306,210.94 : x
  2. Step 2: Convert to fraction form
    560,859.75/773,982.42 = 306,210.94/x
  3. Step 3: Cross multiply
    560,859.75x = 773,982.42 × 306,210.94
  4. Step 4: Simplify right side
    560,859.75x = 237,001,884,371.68
  5. Step 5: Solve for x
    x = 237,001,884,371.68/560,859.75
  6. Step 6: Final answer
    x = 422,568.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.