Home / 1,119,445.83-1,679,160.38-320,728.05

Finding the Fourth Proportional to 1,119,445.83, 1,679,160.38 and 320,728.05

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Solution

The fourth proportional to 1,119,445.83, 1,679,160.38 and 320,728.05 is: 481,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,445.83 : 1,679,160.38 = 320,728.05 : x
  2. Step 2: Convert to fraction form
    1,119,445.83/1,679,160.38 = 320,728.05/x
  3. Step 3: Cross multiply
    1,119,445.83x = 1,679,160.38 × 320,728.05
  4. Step 4: Simplify right side
    1,119,445.83x = 538,553,832,711.02
  5. Step 5: Solve for x
    x = 538,553,832,711.02/1,119,445.83
  6. Step 6: Final answer
    x = 481,089.68

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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.