Home / 1,270,307.72-1,904,012.08-511,663.61

Finding the Fourth Proportional to 1,270,307.72, 1,904,012.08 and 511,663.61

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Solution

The fourth proportional to 1,270,307.72, 1,904,012.08 and 511,663.61 is: 766,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,307.72 : 1,904,012.08 = 511,663.61 : x
  2. Step 2: Convert to fraction form
    1,270,307.72/1,904,012.08 = 511,663.61/x
  3. Step 3: Cross multiply
    1,270,307.72x = 1,904,012.08 × 511,663.61
  4. Step 4: Simplify right side
    1,270,307.72x = 974,213,694,336.41
  5. Step 5: Solve for x
    x = 974,213,694,336.41/1,270,307.72
  6. Step 6: Final answer
    x = 766,911.58

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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.