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Finding the Fourth Proportional to 870,971.28, 1,305,948.43 and 337,869.37

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Solution

The fourth proportional to 870,971.28, 1,305,948.43 and 337,869.37 is: 506,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,971.28 : 1,305,948.43 = 337,869.37 : x
  2. Step 2: Convert to fraction form
    870,971.28/1,305,948.43 = 337,869.37/x
  3. Step 3: Cross multiply
    870,971.28x = 1,305,948.43 × 337,869.37
  4. Step 4: Simplify right side
    870,971.28x = 441,239,973,296.59
  5. Step 5: Solve for x
    x = 441,239,973,296.59/870,971.28
  6. Step 6: Final answer
    x = 506,606.80

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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.