Home / 1,108,535.60-1,660,470.60-921,911.60

Finding the Fourth Proportional to 1,108,535.60, 1,660,470.60 and 921,911.60

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Solution

The fourth proportional to 1,108,535.60, 1,660,470.60 and 921,911.60 is: 1,380,927.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,535.60 : 1,660,470.60 = 921,911.60 : x
  2. Step 2: Convert to fraction form
    1,108,535.60/1,660,470.60 = 921,911.60/x
  3. Step 3: Cross multiply
    1,108,535.60x = 1,660,470.60 × 921,911.60
  4. Step 4: Simplify right side
    1,108,535.60x = 1,530,807,107,598.96
  5. Step 5: Solve for x
    x = 1,530,807,107,598.96/1,108,535.60
  6. Step 6: Final answer
    x = 1,380,927.33

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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.