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Finding the Fourth Proportional to 698,078.40, 963,322.72 and 426,600.72

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Solution

The fourth proportional to 698,078.40, 963,322.72 and 426,600.72 is: 588,693.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,078.40 : 963,322.72 = 426,600.72 : x
  2. Step 2: Convert to fraction form
    698,078.40/963,322.72 = 426,600.72/x
  3. Step 3: Cross multiply
    698,078.40x = 963,322.72 × 426,600.72
  4. Step 4: Simplify right side
    698,078.40x = 410,954,165,944.36
  5. Step 5: Solve for x
    x = 410,954,165,944.36/698,078.40
  6. Step 6: Final answer
    x = 588,693.43

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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.