Home / 981,548.10-1,354,513.05-642,009.06

Finding the Fourth Proportional to 981,548.10, 1,354,513.05 and 642,009.06

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Solution

The fourth proportional to 981,548.10, 1,354,513.05 and 642,009.06 is: 885,957.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,548.10 : 1,354,513.05 = 642,009.06 : x
  2. Step 2: Convert to fraction form
    981,548.10/1,354,513.05 = 642,009.06/x
  3. Step 3: Cross multiply
    981,548.10x = 1,354,513.05 × 642,009.06
  4. Step 4: Simplify right side
    981,548.10x = 869,609,649,988.23
  5. Step 5: Solve for x
    x = 869,609,649,988.23/981,548.10
  6. Step 6: Final answer
    x = 885,957.24

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1.5x scale

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.