Home / 811,243.80-1,214,532.90-496,315.80

Finding the Fourth Proportional to 811,243.80, 1,214,532.90 and 496,315.80

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Solution

The fourth proportional to 811,243.80, 1,214,532.90 and 496,315.80 is: 743,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,243.80 : 1,214,532.90 = 496,315.80 : x
  2. Step 2: Convert to fraction form
    811,243.80/1,214,532.90 = 496,315.80/x
  3. Step 3: Cross multiply
    811,243.80x = 1,214,532.90 × 496,315.80
  4. Step 4: Simplify right side
    811,243.80x = 602,791,867,889.82
  5. Step 5: Solve for x
    x = 602,791,867,889.82/811,243.80
  6. Step 6: Final answer
    x = 743,046.50

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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.