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Finding the Fourth Proportional to 698,084.40, 963,331 and 426,606.72

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Solution

The fourth proportional to 698,084.40, 963,331 and 426,606.72 is: 588,701.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,084.40 : 963,331 = 426,606.72 : x
  2. Step 2: Convert to fraction form
    698,084.40/963,331 = 426,606.72/x
  3. Step 3: Cross multiply
    698,084.40x = 963,331 × 426,606.72
  4. Step 4: Simplify right side
    698,084.40x = 410,963,478,184.32
  5. Step 5: Solve for x
    x = 410,963,478,184.32/698,084.40
  6. Step 6: Final answer
    x = 588,701.71

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Double scale
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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.