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Finding the Fourth Proportional to 609,264.32, 840,877.62 and 379,858.84

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Solution

The fourth proportional to 609,264.32, 840,877.62 and 379,858.84 is: 524,263.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,264.32 : 840,877.62 = 379,858.84 : x
  2. Step 2: Convert to fraction form
    609,264.32/840,877.62 = 379,858.84/x
  3. Step 3: Cross multiply
    609,264.32x = 840,877.62 × 379,858.84
  4. Step 4: Simplify right side
    609,264.32x = 319,414,797,315.16
  5. Step 5: Solve for x
    x = 319,414,797,315.16/609,264.32
  6. Step 6: Final answer
    x = 524,263.09

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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.