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Finding the Fourth Proportional to 690,725.76, 952,836.66 and 475,493.37

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Solution

The fourth proportional to 690,725.76, 952,836.66 and 475,493.37 is: 655,929.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,725.76 : 952,836.66 = 475,493.37 : x
  2. Step 2: Convert to fraction form
    690,725.76/952,836.66 = 475,493.37/x
  3. Step 3: Cross multiply
    690,725.76x = 952,836.66 × 475,493.37
  4. Step 4: Simplify right side
    690,725.76x = 453,067,514,522.94
  5. Step 5: Solve for x
    x = 453,067,514,522.94/690,725.76
  6. Step 6: Final answer
    x = 655,929.66

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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.