Home / 811,690.80-1,217,536.20-496,762.80

Finding the Fourth Proportional to 811,690.80, 1,217,536.20 and 496,762.80

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Solution

The fourth proportional to 811,690.80, 1,217,536.20 and 496,762.80 is: 745,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,690.80 : 1,217,536.20 = 496,762.80 : x
  2. Step 2: Convert to fraction form
    811,690.80/1,217,536.20 = 496,762.80/x
  3. Step 3: Cross multiply
    811,690.80x = 1,217,536.20 × 496,762.80
  4. Step 4: Simplify right side
    811,690.80x = 604,826,691,813.36
  5. Step 5: Solve for x
    x = 604,826,691,813.36/811,690.80
  6. Step 6: Final answer
    x = 745,144.20

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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.