Home / 981,440.40-1,471,123.80-559,808.40

Finding the Fourth Proportional to 981,440.40, 1,471,123.80 and 559,808.40

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Solution

The fourth proportional to 981,440.40, 1,471,123.80 and 559,808.40 is: 839,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,440.40 : 1,471,123.80 = 559,808.40 : x
  2. Step 2: Convert to fraction form
    981,440.40/1,471,123.80 = 559,808.40/x
  3. Step 3: Cross multiply
    981,440.40x = 1,471,123.80 × 559,808.40
  4. Step 4: Simplify right side
    981,440.40x = 823,547,460,679.92
  5. Step 5: Solve for x
    x = 823,547,460,679.92/981,440.40
  6. Step 6: Final answer
    x = 839,121.21

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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.