Home / 905,412.52-1,249,468.94-497,540.64

Finding the Fourth Proportional to 905,412.52, 1,249,468.94 and 497,540.64

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Solution

The fourth proportional to 905,412.52, 1,249,468.94 and 497,540.64 is: 686,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,412.52 : 1,249,468.94 = 497,540.64 : x
  2. Step 2: Convert to fraction form
    905,412.52/1,249,468.94 = 497,540.64/x
  3. Step 3: Cross multiply
    905,412.52x = 1,249,468.94 × 497,540.64
  4. Step 4: Simplify right side
    905,412.52x = 621,661,576,067.72
  5. Step 5: Solve for x
    x = 621,661,576,067.72/905,412.52
  6. Step 6: Final answer
    x = 686,605.90

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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.