Home / 905,762.87-1,249,949.91-497,890.14

Finding the Fourth Proportional to 905,762.87, 1,249,949.91 and 497,890.14

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Solution

The fourth proportional to 905,762.87, 1,249,949.91 and 497,890.14 is: 687,086.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,762.87 : 1,249,949.91 = 497,890.14 : x
  2. Step 2: Convert to fraction form
    905,762.87/1,249,949.91 = 497,890.14/x
  3. Step 3: Cross multiply
    905,762.87x = 1,249,949.91 × 497,890.14
  4. Step 4: Simplify right side
    905,762.87x = 622,337,735,682.89
  5. Step 5: Solve for x
    x = 622,337,735,682.89/905,762.87
  6. Step 6: Final answer
    x = 687,086.83

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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.