Home / 442,931.70-664,397.55-307,629.30

Finding the Fourth Proportional to 442,931.70, 664,397.55 and 307,629.30

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Solution

The fourth proportional to 442,931.70, 664,397.55 and 307,629.30 is: 461,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,931.70 : 664,397.55 = 307,629.30 : x
  2. Step 2: Convert to fraction form
    442,931.70/664,397.55 = 307,629.30/x
  3. Step 3: Cross multiply
    442,931.70x = 664,397.55 × 307,629.30
  4. Step 4: Simplify right side
    442,931.70x = 204,388,153,228.22
  5. Step 5: Solve for x
    x = 204,388,153,228.22/442,931.70
  6. Step 6: Final answer
    x = 461,443.95

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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.