Home / 1,411,219.80-2,116,829.70-664,723.80

Finding the Fourth Proportional to 1,411,219.80, 2,116,829.70 and 664,723.80

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Solution

The fourth proportional to 1,411,219.80, 2,116,829.70 and 664,723.80 is: 997,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,219.80 : 2,116,829.70 = 664,723.80 : x
  2. Step 2: Convert to fraction form
    1,411,219.80/2,116,829.70 = 664,723.80/x
  3. Step 3: Cross multiply
    1,411,219.80x = 2,116,829.70 × 664,723.80
  4. Step 4: Simplify right side
    1,411,219.80x = 1,407,107,082,136.86
  5. Step 5: Solve for x
    x = 1,407,107,082,136.86/1,411,219.80
  6. Step 6: Final answer
    x = 997,085.70

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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.