Home / 981,128.48-1,471,875.24-341,405.60

Finding the Fourth Proportional to 981,128.48, 1,471,875.24 and 341,405.60

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Solution

The fourth proportional to 981,128.48, 1,471,875.24 and 341,405.60 is: 512,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,128.48 : 1,471,875.24 = 341,405.60 : x
  2. Step 2: Convert to fraction form
    981,128.48/1,471,875.24 = 341,405.60/x
  3. Step 3: Cross multiply
    981,128.48x = 1,471,875.24 × 341,405.60
  4. Step 4: Simplify right side
    981,128.48x = 502,506,449,437.34
  5. Step 5: Solve for x
    x = 502,506,449,437.34/981,128.48
  6. Step 6: Final answer
    x = 512,171.91

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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.