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Finding the Fourth Proportional to 661,324.04, 912,698.52 and 374,813.36

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Solution

The fourth proportional to 661,324.04, 912,698.52 and 374,813.36 is: 517,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,324.04 : 912,698.52 = 374,813.36 : x
  2. Step 2: Convert to fraction form
    661,324.04/912,698.52 = 374,813.36/x
  3. Step 3: Cross multiply
    661,324.04x = 912,698.52 × 374,813.36
  4. Step 4: Simplify right side
    661,324.04x = 342,091,598,948.23
  5. Step 5: Solve for x
    x = 342,091,598,948.23/661,324.04
  6. Step 6: Final answer
    x = 517,282.87

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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.