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Finding the Fourth Proportional to 653,121.50, 980,055.32 and 253,710.27

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Solution

The fourth proportional to 653,121.50, 980,055.32 and 253,710.27 is: 380,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,121.50 : 980,055.32 = 253,710.27 : x
  2. Step 2: Convert to fraction form
    653,121.50/980,055.32 = 253,710.27/x
  3. Step 3: Cross multiply
    653,121.50x = 980,055.32 × 253,710.27
  4. Step 4: Simplify right side
    653,121.50x = 248,650,098,583.59
  5. Step 5: Solve for x
    x = 248,650,098,583.59/653,121.50
  6. Step 6: Final answer
    x = 380,710.33

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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.