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Finding the Fourth Proportional to 483,986.40, 726,125.40 and 344,018.40

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Solution

The fourth proportional to 483,986.40, 726,125.40 and 344,018.40 is: 516,131.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,986.40 : 726,125.40 = 344,018.40 : x
  2. Step 2: Convert to fraction form
    483,986.40/726,125.40 = 344,018.40/x
  3. Step 3: Cross multiply
    483,986.40x = 726,125.40 × 344,018.40
  4. Step 4: Simplify right side
    483,986.40x = 249,800,498,307.36
  5. Step 5: Solve for x
    x = 249,800,498,307.36/483,986.40
  6. Step 6: Final answer
    x = 516,131.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.