Home / 1,208,117.72-1,811,044.80-408,839.69

Finding the Fourth Proportional to 1,208,117.72, 1,811,044.80 and 408,839.69

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Solution

The fourth proportional to 1,208,117.72, 1,811,044.80 and 408,839.69 is: 612,876.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,117.72 : 1,811,044.80 = 408,839.69 : x
  2. Step 2: Convert to fraction form
    1,208,117.72/1,811,044.80 = 408,839.69/x
  3. Step 3: Cross multiply
    1,208,117.72x = 1,811,044.80 × 408,839.69
  4. Step 4: Simplify right side
    1,208,117.72x = 740,426,985,552.89
  5. Step 5: Solve for x
    x = 740,426,985,552.89/1,208,117.72
  6. Step 6: Final answer
    x = 612,876.52

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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.