Home / 638,580.32-958,243.92-354,510.08

Finding the Fourth Proportional to 638,580.32, 958,243.92 and 354,510.08

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Solution

The fourth proportional to 638,580.32, 958,243.92 and 354,510.08 is: 531,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,580.32 : 958,243.92 = 354,510.08 : x
  2. Step 2: Convert to fraction form
    638,580.32/958,243.92 = 354,510.08/x
  3. Step 3: Cross multiply
    638,580.32x = 958,243.92 × 354,510.08
  4. Step 4: Simplify right side
    638,580.32x = 339,707,128,738.71
  5. Step 5: Solve for x
    x = 339,707,128,738.71/638,580.32
  6. Step 6: Final answer
    x = 531,972.44

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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.