Home / 1,100,364.36-1,650,002.20-390,285.96

Finding the Fourth Proportional to 1,100,364.36, 1,650,002.20 and 390,285.96

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Solution

The fourth proportional to 1,100,364.36, 1,650,002.20 and 390,285.96 is: 585,235.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,364.36 : 1,650,002.20 = 390,285.96 : x
  2. Step 2: Convert to fraction form
    1,100,364.36/1,650,002.20 = 390,285.96/x
  3. Step 3: Cross multiply
    1,100,364.36x = 1,650,002.20 × 390,285.96
  4. Step 4: Simplify right side
    1,100,364.36x = 643,972,692,629.11
  5. Step 5: Solve for x
    x = 643,972,692,629.11/1,100,364.36
  6. Step 6: Final answer
    x = 585,235.87

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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.