Home / 1,185,148.98-1,635,493.74-641,272.86

Finding the Fourth Proportional to 1,185,148.98, 1,635,493.74 and 641,272.86

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Solution

The fourth proportional to 1,185,148.98, 1,635,493.74 and 641,272.86 is: 884,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,148.98 : 1,635,493.74 = 641,272.86 : x
  2. Step 2: Convert to fraction form
    1,185,148.98/1,635,493.74 = 641,272.86/x
  3. Step 3: Cross multiply
    1,185,148.98x = 1,635,493.74 × 641,272.86
  4. Step 4: Simplify right side
    1,185,148.98x = 1,048,797,748,161.90
  5. Step 5: Solve for x
    x = 1,048,797,748,161.90/1,185,148.98
  6. Step 6: Final answer
    x = 884,950.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.