Home / 981,901.64-1,355,032.37-552,178.01

Finding the Fourth Proportional to 981,901.64, 1,355,032.37 and 552,178.01

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Solution

The fourth proportional to 981,901.64, 1,355,032.37 and 552,178.01 is: 762,010.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,901.64 : 1,355,032.37 = 552,178.01 : x
  2. Step 2: Convert to fraction form
    981,901.64/1,355,032.37 = 552,178.01/x
  3. Step 3: Cross multiply
    981,901.64x = 1,355,032.37 × 552,178.01
  4. Step 4: Simplify right side
    981,901.64x = 748,219,072,157.47
  5. Step 5: Solve for x
    x = 748,219,072,157.47/981,901.64
  6. Step 6: Final answer
    x = 762,010.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.