Home / 1,122,387.40-1,683,829.88-323,606.64

Finding the Fourth Proportional to 1,122,387.40, 1,683,829.88 and 323,606.64

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Solution

The fourth proportional to 1,122,387.40, 1,683,829.88 and 323,606.64 is: 485,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,387.40 : 1,683,829.88 = 323,606.64 : x
  2. Step 2: Convert to fraction form
    1,122,387.40/1,683,829.88 = 323,606.64/x
  3. Step 3: Cross multiply
    1,122,387.40x = 1,683,829.88 × 323,606.64
  4. Step 4: Simplify right side
    1,122,387.40x = 544,898,529,798.40
  5. Step 5: Solve for x
    x = 544,898,529,798.40/1,122,387.40
  6. Step 6: Final answer
    x = 485,481.69

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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.