Home / 1,119,809.62-1,679,220.27-320,909.86

Finding the Fourth Proportional to 1,119,809.62, 1,679,220.27 and 320,909.86

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Solution

The fourth proportional to 1,119,809.62, 1,679,220.27 and 320,909.86 is: 481,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,809.62 : 1,679,220.27 = 320,909.86 : x
  2. Step 2: Convert to fraction form
    1,119,809.62/1,679,220.27 = 320,909.86/x
  3. Step 3: Cross multiply
    1,119,809.62x = 1,679,220.27 × 320,909.86
  4. Step 4: Simplify right side
    1,119,809.62x = 538,878,341,754.86
  5. Step 5: Solve for x
    x = 538,878,341,754.86/1,119,809.62
  6. Step 6: Final answer
    x = 481,223.18

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1.5x scale

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.