Home / 442,003.24-609,804.46-289,128.70

Finding the Fourth Proportional to 442,003.24, 609,804.46 and 289,128.70

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Solution

The fourth proportional to 442,003.24, 609,804.46 and 289,128.70 is: 398,892.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,003.24 : 609,804.46 = 289,128.70 : x
  2. Step 2: Convert to fraction form
    442,003.24/609,804.46 = 289,128.70/x
  3. Step 3: Cross multiply
    442,003.24x = 609,804.46 × 289,128.70
  4. Step 4: Simplify right side
    442,003.24x = 176,311,967,724.98
  5. Step 5: Solve for x
    x = 176,311,967,724.98/442,003.24
  6. Step 6: Final answer
    x = 398,892.94

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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.