Home / 981,350.40-1,470,988.80-559,718.40

Finding the Fourth Proportional to 981,350.40, 1,470,988.80 and 559,718.40

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Solution

The fourth proportional to 981,350.40, 1,470,988.80 and 559,718.40 is: 838,986.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,350.40 : 1,470,988.80 = 559,718.40 : x
  2. Step 2: Convert to fraction form
    981,350.40/1,470,988.80 = 559,718.40/x
  3. Step 3: Cross multiply
    981,350.40x = 1,470,988.80 × 559,718.40
  4. Step 4: Simplify right side
    981,350.40x = 823,339,497,553.92
  5. Step 5: Solve for x
    x = 823,339,497,553.92/981,350.40
  6. Step 6: Final answer
    x = 838,986.26

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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.