Home / 1,411,221.80-2,116,832.70-664,725.80

Finding the Fourth Proportional to 1,411,221.80, 2,116,832.70 and 664,725.80

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Solution

The fourth proportional to 1,411,221.80, 2,116,832.70 and 664,725.80 is: 997,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,221.80 : 2,116,832.70 = 664,725.80 : x
  2. Step 2: Convert to fraction form
    1,411,221.80/2,116,832.70 = 664,725.80/x
  3. Step 3: Cross multiply
    1,411,221.80x = 2,116,832.70 × 664,725.80
  4. Step 4: Simplify right side
    1,411,221.80x = 1,407,113,309,973.66
  5. Step 5: Solve for x
    x = 1,407,113,309,973.66/1,411,221.80
  6. Step 6: Final answer
    x = 997,088.70

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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.