Home / 905,655.29-1,249,817.21-497,794.82

Finding the Fourth Proportional to 905,655.29, 1,249,817.21 and 497,794.82

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Solution

The fourth proportional to 905,655.29, 1,249,817.21 and 497,794.82 is: 686,963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,655.29 : 1,249,817.21 = 497,794.82 : x
  2. Step 2: Convert to fraction form
    905,655.29/1,249,817.21 = 497,794.82/x
  3. Step 3: Cross multiply
    905,655.29x = 1,249,817.21 × 497,794.82
  4. Step 4: Simplify right side
    905,655.29x = 622,152,524,346.79
  5. Step 5: Solve for x
    x = 622,152,524,346.79/905,655.29
  6. Step 6: Final answer
    x = 686,963.94

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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.