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Finding the Fourth Proportional to 698,575.59, 964,138.75 and 426,800.54

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Solution

The fourth proportional to 698,575.59, 964,138.75 and 426,800.54 is: 589,048.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,575.59 : 964,138.75 = 426,800.54 : x
  2. Step 2: Convert to fraction form
    698,575.59/964,138.75 = 426,800.54/x
  3. Step 3: Cross multiply
    698,575.59x = 964,138.75 × 426,800.54
  4. Step 4: Simplify right side
    698,575.59x = 411,494,940,478.27
  5. Step 5: Solve for x
    x = 411,494,940,478.27/698,575.59
  6. Step 6: Final answer
    x = 589,048.55

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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.