Home / 869,129.62-1,199,401.54-481,972.30

Finding the Fourth Proportional to 869,129.62, 1,199,401.54 and 481,972.30

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Solution

The fourth proportional to 869,129.62, 1,199,401.54 and 481,972.30 is: 665,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,129.62 : 1,199,401.54 = 481,972.30 : x
  2. Step 2: Convert to fraction form
    869,129.62/1,199,401.54 = 481,972.30/x
  3. Step 3: Cross multiply
    869,129.62x = 1,199,401.54 × 481,972.30
  4. Step 4: Simplify right side
    869,129.62x = 578,078,314,653.91
  5. Step 5: Solve for x
    x = 578,078,314,653.91/869,129.62
  6. Step 6: Final answer
    x = 665,123.25

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1.5x scale

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.