Home / 905,618.85-1,249,782.14-497,713.29

Finding the Fourth Proportional to 905,618.85, 1,249,782.14 and 497,713.29

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Solution

The fourth proportional to 905,618.85, 1,249,782.14 and 497,713.29 is: 686,859.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,618.85 : 1,249,782.14 = 497,713.29 : x
  2. Step 2: Convert to fraction form
    905,618.85/1,249,782.14 = 497,713.29/x
  3. Step 3: Cross multiply
    905,618.85x = 1,249,782.14 × 497,713.29
  4. Step 4: Simplify right side
    905,618.85x = 622,033,180,682.64
  5. Step 5: Solve for x
    x = 622,033,180,682.64/905,618.85
  6. Step 6: Final answer
    x = 686,859.80

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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.