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Finding the Fourth Proportional to 508,727.56, 702,046.77 and 317,851.67

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Solution

The fourth proportional to 508,727.56, 702,046.77 and 317,851.67 is: 438,637.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,727.56 : 702,046.77 = 317,851.67 : x
  2. Step 2: Convert to fraction form
    508,727.56/702,046.77 = 317,851.67/x
  3. Step 3: Cross multiply
    508,727.56x = 702,046.77 × 317,851.67
  4. Step 4: Simplify right side
    508,727.56x = 223,146,738,262.61
  5. Step 5: Solve for x
    x = 223,146,738,262.61/508,727.56
  6. Step 6: Final answer
    x = 438,637.01

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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.