Home / 1,149,397.42-1,586,054.90-640,147.18

Finding the Fourth Proportional to 1,149,397.42, 1,586,054.90 and 640,147.18

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Solution

The fourth proportional to 1,149,397.42, 1,586,054.90 and 640,147.18 is: 883,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,397.42 : 1,586,054.90 = 640,147.18 : x
  2. Step 2: Convert to fraction form
    1,149,397.42/1,586,054.90 = 640,147.18/x
  3. Step 3: Cross multiply
    1,149,397.42x = 1,586,054.90 × 640,147.18
  4. Step 4: Simplify right side
    1,149,397.42x = 1,015,308,571,560.18
  5. Step 5: Solve for x
    x = 1,015,308,571,560.18/1,149,397.42
  6. Step 6: Final answer
    x = 883,339.87

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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.