Home / 497,205.47-686,148.06-300,976.46

Finding the Fourth Proportional to 497,205.47, 686,148.06 and 300,976.46

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Solution

The fourth proportional to 497,205.47, 686,148.06 and 300,976.46 is: 415,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,205.47 : 686,148.06 = 300,976.46 : x
  2. Step 2: Convert to fraction form
    497,205.47/686,148.06 = 300,976.46/x
  3. Step 3: Cross multiply
    497,205.47x = 686,148.06 × 300,976.46
  4. Step 4: Simplify right side
    497,205.47x = 206,514,414,405.64
  5. Step 5: Solve for x
    x = 206,514,414,405.64/497,205.47
  6. Step 6: Final answer
    x = 415,350.24

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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.