Home / 981,618.48-1,472,384.88-307,684.40

Finding the Fourth Proportional to 981,618.48, 1,472,384.88 and 307,684.40

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Solution

The fourth proportional to 981,618.48, 1,472,384.88 and 307,684.40 is: 461,513.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,618.48 : 1,472,384.88 = 307,684.40 : x
  2. Step 2: Convert to fraction form
    981,618.48/1,472,384.88 = 307,684.40/x
  3. Step 3: Cross multiply
    981,618.48x = 1,472,384.88 × 307,684.40
  4. Step 4: Simplify right side
    981,618.48x = 453,029,858,371.87
  5. Step 5: Solve for x
    x = 453,029,858,371.87/981,618.48
  6. Step 6: Final answer
    x = 461,513.17

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1.5x scale

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.