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Finding the Fourth Proportional to 661,930.95, 913,435.81 and 367,562.42

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Solution

The fourth proportional to 661,930.95, 913,435.81 and 367,562.42 is: 507,220.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,930.95 : 913,435.81 = 367,562.42 : x
  2. Step 2: Convert to fraction form
    661,930.95/913,435.81 = 367,562.42/x
  3. Step 3: Cross multiply
    661,930.95x = 913,435.81 × 367,562.42
  4. Step 4: Simplify right side
    661,930.95x = 335,744,672,271.08
  5. Step 5: Solve for x
    x = 335,744,672,271.08/661,930.95
  6. Step 6: Final answer
    x = 507,220.08

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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.