Home / 1,128,376.89-1,557,160.08-644,952.42

Finding the Fourth Proportional to 1,128,376.89, 1,557,160.08 and 644,952.42

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Solution

The fourth proportional to 1,128,376.89, 1,557,160.08 and 644,952.42 is: 890,034.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,376.89 : 1,557,160.08 = 644,952.42 : x
  2. Step 2: Convert to fraction form
    1,128,376.89/1,557,160.08 = 644,952.42/x
  3. Step 3: Cross multiply
    1,128,376.89x = 1,557,160.08 × 644,952.42
  4. Step 4: Simplify right side
    1,128,376.89x = 1,004,294,161,923.39
  5. Step 5: Solve for x
    x = 1,004,294,161,923.39/1,128,376.89
  6. Step 6: Final answer
    x = 890,034.32

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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.