Home / 1,112,118.76-1,530,586.80-916,965.46

Finding the Fourth Proportional to 1,112,118.76, 1,530,586.80 and 916,965.46

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Solution

The fourth proportional to 1,112,118.76, 1,530,586.80 and 916,965.46 is: 1,262,001.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,118.76 : 1,530,586.80 = 916,965.46 : x
  2. Step 2: Convert to fraction form
    1,112,118.76/1,530,586.80 = 916,965.46/x
  3. Step 3: Cross multiply
    1,112,118.76x = 1,530,586.80 × 916,965.46
  4. Step 4: Simplify right side
    1,112,118.76x = 1,403,495,229,131.93
  5. Step 5: Solve for x
    x = 1,403,495,229,131.93/1,112,118.76
  6. Step 6: Final answer
    x = 1,262,001.22

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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.