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Finding the Fourth Proportional to 653,604.39, 980,415.70 and 173,840.38

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Solution

The fourth proportional to 653,604.39, 980,415.70 and 173,840.38 is: 260,762.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,604.39 : 980,415.70 = 173,840.38 : x
  2. Step 2: Convert to fraction form
    653,604.39/980,415.70 = 173,840.38/x
  3. Step 3: Cross multiply
    653,604.39x = 980,415.70 × 173,840.38
  4. Step 4: Simplify right side
    653,604.39x = 170,435,834,960.33
  5. Step 5: Solve for x
    x = 170,435,834,960.33/653,604.39
  6. Step 6: Final answer
    x = 260,762.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.