Home / 1,189,148.47-1,641,016.53-645,270.41

Finding the Fourth Proportional to 1,189,148.47, 1,641,016.53 and 645,270.41

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Solution

The fourth proportional to 1,189,148.47, 1,641,016.53 and 645,270.41 is: 890,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,148.47 : 1,641,016.53 = 645,270.41 : x
  2. Step 2: Convert to fraction form
    1,189,148.47/1,641,016.53 = 645,270.41/x
  3. Step 3: Cross multiply
    1,189,148.47x = 1,641,016.53 × 645,270.41
  4. Step 4: Simplify right side
    1,189,148.47x = 1,058,899,413,232.42
  5. Step 5: Solve for x
    x = 1,058,899,413,232.42/1,189,148.47
  6. Step 6: Final answer
    x = 890,468.64

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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.