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Finding the Fourth Proportional to 698,329.98, 963,620.55 and 468,840.78

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Solution

The fourth proportional to 698,329.98, 963,620.55 and 468,840.78 is: 646,950.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,329.98 : 963,620.55 = 468,840.78 : x
  2. Step 2: Convert to fraction form
    698,329.98/963,620.55 = 468,840.78/x
  3. Step 3: Cross multiply
    698,329.98x = 963,620.55 × 468,840.78
  4. Step 4: Simplify right side
    698,329.98x = 451,784,610,286.03
  5. Step 5: Solve for x
    x = 451,784,610,286.03/698,329.98
  6. Step 6: Final answer
    x = 646,950.04

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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.