Home / 1,215,637.61-1,677,680.91-671,879.61

Finding the Fourth Proportional to 1,215,637.61, 1,677,680.91 and 671,879.61

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Solution

The fourth proportional to 1,215,637.61, 1,677,680.91 and 671,879.61 is: 927,249.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,637.61 : 1,677,680.91 = 671,879.61 : x
  2. Step 2: Convert to fraction form
    1,215,637.61/1,677,680.91 = 671,879.61/x
  3. Step 3: Cross multiply
    1,215,637.61x = 1,677,680.91 × 671,879.61
  4. Step 4: Simplify right side
    1,215,637.61x = 1,127,199,595,515.25
  5. Step 5: Solve for x
    x = 1,127,199,595,515.25/1,215,637.61
  6. Step 6: Final answer
    x = 927,249.69

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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.