Home / 1,128,368.74-1,557,148.87-644,944.27

Finding the Fourth Proportional to 1,128,368.74, 1,557,148.87 and 644,944.27

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Solution

The fourth proportional to 1,128,368.74, 1,557,148.87 and 644,944.27 is: 890,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,368.74 : 1,557,148.87 = 644,944.27 : x
  2. Step 2: Convert to fraction form
    1,128,368.74/1,557,148.87 = 644,944.27/x
  3. Step 3: Cross multiply
    1,128,368.74x = 1,557,148.87 × 644,944.27
  4. Step 4: Simplify right side
    1,128,368.74x = 1,004,274,241,243.48
  5. Step 5: Solve for x
    x = 1,004,274,241,243.48/1,128,368.74
  6. Step 6: Final answer
    x = 890,023.10

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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.