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Finding the Fourth Proportional to 560,571.71, 840,357.48 and 205,502.81

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Solution

The fourth proportional to 560,571.71, 840,357.48 and 205,502.81 is: 308,070.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,571.71 : 840,357.48 = 205,502.81 : x
  2. Step 2: Convert to fraction form
    560,571.71/840,357.48 = 205,502.81/x
  3. Step 3: Cross multiply
    560,571.71x = 840,357.48 × 205,502.81
  4. Step 4: Simplify right side
    560,571.71x = 172,695,823,544.52
  5. Step 5: Solve for x
    x = 172,695,823,544.52/560,571.71
  6. Step 6: Final answer
    x = 308,070.89

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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.