Home / 1,135,178.78-1,566,558.93-618,928.46

Finding the Fourth Proportional to 1,135,178.78, 1,566,558.93 and 618,928.46

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Solution

The fourth proportional to 1,135,178.78, 1,566,558.93 and 618,928.46 is: 854,127.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135,178.78 : 1,566,558.93 = 618,928.46 : x
  2. Step 2: Convert to fraction form
    1,135,178.78/1,566,558.93 = 618,928.46/x
  3. Step 3: Cross multiply
    1,135,178.78x = 1,566,558.93 × 618,928.46
  4. Step 4: Simplify right side
    1,135,178.78x = 969,587,898,211.35
  5. Step 5: Solve for x
    x = 969,587,898,211.35/1,135,178.78
  6. Step 6: Final answer
    x = 854,127.93

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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.