Home / 687,311.26-1,030,448.46-450,713.50

Finding the Fourth Proportional to 687,311.26, 1,030,448.46 and 450,713.50

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Solution

The fourth proportional to 687,311.26, 1,030,448.46 and 450,713.50 is: 675,730.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,311.26 : 1,030,448.46 = 450,713.50 : x
  2. Step 2: Convert to fraction form
    687,311.26/1,030,448.46 = 450,713.50/x
  3. Step 3: Cross multiply
    687,311.26x = 1,030,448.46 × 450,713.50
  4. Step 4: Simplify right side
    687,311.26x = 464,437,031,976.21
  5. Step 5: Solve for x
    x = 464,437,031,976.21/687,311.26
  6. Step 6: Final answer
    x = 675,730.28

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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.