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Finding the Fourth Proportional to 648,435.86, 894,838.03 and 376,570.57

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Solution

The fourth proportional to 648,435.86, 894,838.03 and 376,570.57 is: 519,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,435.86 : 894,838.03 = 376,570.57 : x
  2. Step 2: Convert to fraction form
    648,435.86/894,838.03 = 376,570.57/x
  3. Step 3: Cross multiply
    648,435.86x = 894,838.03 × 376,570.57
  4. Step 4: Simplify right side
    648,435.86x = 336,969,667,632.29
  5. Step 5: Solve for x
    x = 336,969,667,632.29/648,435.86
  6. Step 6: Final answer
    x = 519,665.38

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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.