Home / 1,118,678.51-1,543,116.94-791,623.59

Finding the Fourth Proportional to 1,118,678.51, 1,543,116.94 and 791,623.59

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Solution

The fourth proportional to 1,118,678.51, 1,543,116.94 and 791,623.59 is: 1,091,973.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,678.51 : 1,543,116.94 = 791,623.59 : x
  2. Step 2: Convert to fraction form
    1,118,678.51/1,543,116.94 = 791,623.59/x
  3. Step 3: Cross multiply
    1,118,678.51x = 1,543,116.94 × 791,623.59
  4. Step 4: Simplify right side
    1,118,678.51x = 1,221,567,778,608.83
  5. Step 5: Solve for x
    x = 1,221,567,778,608.83/1,118,678.51
  6. Step 6: Final answer
    x = 1,091,973.94

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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.