Home / 1,149,321.66-1,586,038.23-640,071.42

Finding the Fourth Proportional to 1,149,321.66, 1,586,038.23 and 640,071.42

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Solution

The fourth proportional to 1,149,321.66, 1,586,038.23 and 640,071.42 is: 883,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,321.66 : 1,586,038.23 = 640,071.42 : x
  2. Step 2: Convert to fraction form
    1,149,321.66/1,586,038.23 = 640,071.42/x
  3. Step 3: Cross multiply
    1,149,321.66x = 1,586,038.23 × 640,071.42
  4. Step 4: Simplify right side
    1,149,321.66x = 1,015,177,742,050.39
  5. Step 5: Solve for x
    x = 1,015,177,742,050.39/1,149,321.66
  6. Step 6: Final answer
    x = 883,284.27

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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.