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Finding the Fourth Proportional to 609,340.32, 840,982.50 and 379,935

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Solution

The fourth proportional to 609,340.32, 840,982.50 and 379,935 is: 524,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,340.32 : 840,982.50 = 379,935 : x
  2. Step 2: Convert to fraction form
    609,340.32/840,982.50 = 379,935/x
  3. Step 3: Cross multiply
    609,340.32x = 840,982.50 × 379,935
  4. Step 4: Simplify right side
    609,340.32x = 319,518,686,137.50
  5. Step 5: Solve for x
    x = 319,518,686,137.50/609,340.32
  6. Step 6: Final answer
    x = 524,368.20

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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.