Home / 1,213,613.40-1,820,638.80-503,713.20

Finding the Fourth Proportional to 1,213,613.40, 1,820,638.80 and 503,713.20

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Solution

The fourth proportional to 1,213,613.40, 1,820,638.80 and 503,713.20 is: 755,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,613.40 : 1,820,638.80 = 503,713.20 : x
  2. Step 2: Convert to fraction form
    1,213,613.40/1,820,638.80 = 503,713.20/x
  3. Step 3: Cross multiply
    1,213,613.40x = 1,820,638.80 × 503,713.20
  4. Step 4: Simplify right side
    1,213,613.40x = 917,079,795,992.16
  5. Step 5: Solve for x
    x = 917,079,795,992.16/1,213,613.40
  6. Step 6: Final answer
    x = 755,660.57

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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.