Home / 1,123,186.96-1,683,066.05-666,879.63

Finding the Fourth Proportional to 1,123,186.96, 1,683,066.05 and 666,879.63

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Solution

The fourth proportional to 1,123,186.96, 1,683,066.05 and 666,879.63 is: 999,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,186.96 : 1,683,066.05 = 666,879.63 : x
  2. Step 2: Convert to fraction form
    1,123,186.96/1,683,066.05 = 666,879.63/x
  3. Step 3: Cross multiply
    1,123,186.96x = 1,683,066.05 × 666,879.63
  4. Step 4: Simplify right side
    1,123,186.96x = 1,122,402,468,887.31
  5. Step 5: Solve for x
    x = 1,122,402,468,887.31/1,123,186.96
  6. Step 6: Final answer
    x = 999,301.55

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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.