Home / 1,433,699.79-1,978,490.07-789,106.14

Finding the Fourth Proportional to 1,433,699.79, 1,978,490.07 and 789,106.14

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Solution

The fourth proportional to 1,433,699.79, 1,978,490.07 and 789,106.14 is: 1,088,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,699.79 : 1,978,490.07 = 789,106.14 : x
  2. Step 2: Convert to fraction form
    1,433,699.79/1,978,490.07 = 789,106.14/x
  3. Step 3: Cross multiply
    1,433,699.79x = 1,978,490.07 × 789,106.14
  4. Step 4: Simplify right side
    1,433,699.79x = 1,561,238,662,166.03
  5. Step 5: Solve for x
    x = 1,561,238,662,166.03/1,433,699.79
  6. Step 6: Final answer
    x = 1,088,957.86

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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.