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Finding the Fourth Proportional to 661,993.28, 913,646.19 and 367,710.13

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Solution

The fourth proportional to 661,993.28, 913,646.19 and 367,710.13 is: 507,493.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,993.28 : 913,646.19 = 367,710.13 : x
  2. Step 2: Convert to fraction form
    661,993.28/913,646.19 = 367,710.13/x
  3. Step 3: Cross multiply
    661,993.28x = 913,646.19 × 367,710.13
  4. Step 4: Simplify right side
    661,993.28x = 335,956,959,298.91
  5. Step 5: Solve for x
    x = 335,956,959,298.91/661,993.28
  6. Step 6: Final answer
    x = 507,493.01

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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.