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Finding the Fourth Proportional to 452,404.32, 678,642.08 and 119,980.32

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Solution

The fourth proportional to 452,404.32, 678,642.08 and 119,980.32 is: 179,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,404.32 : 678,642.08 = 119,980.32 : x
  2. Step 2: Convert to fraction form
    452,404.32/678,642.08 = 119,980.32/x
  3. Step 3: Cross multiply
    452,404.32x = 678,642.08 × 119,980.32
  4. Step 4: Simplify right side
    452,404.32x = 81,423,693,923.87
  5. Step 5: Solve for x
    x = 81,423,693,923.87/452,404.32
  6. Step 6: Final answer
    x = 179,979.92

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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.