Home / 1,130,688.72-1,560,351.60-621,380.16

Finding the Fourth Proportional to 1,130,688.72, 1,560,351.60 and 621,380.16

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Solution

The fourth proportional to 1,130,688.72, 1,560,351.60 and 621,380.16 is: 857,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,688.72 : 1,560,351.60 = 621,380.16 : x
  2. Step 2: Convert to fraction form
    1,130,688.72/1,560,351.60 = 621,380.16/x
  3. Step 3: Cross multiply
    1,130,688.72x = 1,560,351.60 × 621,380.16
  4. Step 4: Simplify right side
    1,130,688.72x = 969,571,526,864.26
  5. Step 5: Solve for x
    x = 969,571,526,864.26/1,130,688.72
  6. Step 6: Final answer
    x = 857,505.26

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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.