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Finding the Fourth Proportional to 653,119.98, 980,053.06 and 253,708.78

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Solution

The fourth proportional to 653,119.98, 980,053.06 and 253,708.78 is: 380,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,119.98 : 980,053.06 = 253,708.78 : x
  2. Step 2: Convert to fraction form
    653,119.98/980,053.06 = 253,708.78/x
  3. Step 3: Cross multiply
    653,119.98x = 980,053.06 × 253,708.78
  4. Step 4: Simplify right side
    653,119.98x = 248,648,066,187.87
  5. Step 5: Solve for x
    x = 248,648,066,187.87/653,119.98
  6. Step 6: Final answer
    x = 380,708.10

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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.