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Finding the Fourth Proportional to 698,065.20, 963,420.84 and 426,076.56

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Solution

The fourth proportional to 698,065.20, 963,420.84 and 426,076.56 is: 588,041.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,065.20 : 963,420.84 = 426,076.56 : x
  2. Step 2: Convert to fraction form
    698,065.20/963,420.84 = 426,076.56/x
  3. Step 3: Cross multiply
    698,065.20x = 963,420.84 × 426,076.56
  4. Step 4: Simplify right side
    698,065.20x = 410,491,037,339.51
  5. Step 5: Solve for x
    x = 410,491,037,339.51/698,065.20
  6. Step 6: Final answer
    x = 588,041.11

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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.