Home / 686,866.96-1,030,349.64-181,422.90

Finding the Fourth Proportional to 686,866.96, 1,030,349.64 and 181,422.90

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Solution

The fourth proportional to 686,866.96, 1,030,349.64 and 181,422.90 is: 272,147.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,866.96 : 1,030,349.64 = 181,422.90 : x
  2. Step 2: Convert to fraction form
    686,866.96/1,030,349.64 = 181,422.90/x
  3. Step 3: Cross multiply
    686,866.96x = 1,030,349.64 × 181,422.90
  4. Step 4: Simplify right side
    686,866.96x = 186,929,021,321.77
  5. Step 5: Solve for x
    x = 186,929,021,321.77/686,866.96
  6. Step 6: Final answer
    x = 272,147.35

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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.