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Finding the Fourth Proportional to 571,665.74, 788,913.17 and 323,287.81

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Solution

The fourth proportional to 571,665.74, 788,913.17 and 323,287.81 is: 446,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,665.74 : 788,913.17 = 323,287.81 : x
  2. Step 2: Convert to fraction form
    571,665.74/788,913.17 = 323,287.81/x
  3. Step 3: Cross multiply
    571,665.74x = 788,913.17 × 323,287.81
  4. Step 4: Simplify right side
    571,665.74x = 255,046,008,633.07
  5. Step 5: Solve for x
    x = 255,046,008,633.07/571,665.74
  6. Step 6: Final answer
    x = 446,145.35

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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.