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Finding the Fourth Proportional to 981,806.94, 1,470,348.45 and 559,803.42

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Solution

The fourth proportional to 981,806.94, 1,470,348.45 and 559,803.42 is: 838,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,806.94 : 1,470,348.45 = 559,803.42 : x
  2. Step 2: Convert to fraction form
    981,806.94/1,470,348.45 = 559,803.42/x
  3. Step 3: Cross multiply
    981,806.94x = 1,470,348.45 × 559,803.42
  4. Step 4: Simplify right side
    981,806.94x = 823,106,090,901.70
  5. Step 5: Solve for x
    x = 823,106,090,901.70/981,806.94
  6. Step 6: Final answer
    x = 838,358.40

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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.