Home / 436,258.49-654,402.30-120,688.97

Finding the Fourth Proportional to 436,258.49, 654,402.30 and 120,688.97

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Solution

The fourth proportional to 436,258.49, 654,402.30 and 120,688.97 is: 181,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,258.49 : 654,402.30 = 120,688.97 : x
  2. Step 2: Convert to fraction form
    436,258.49/654,402.30 = 120,688.97/x
  3. Step 3: Cross multiply
    436,258.49x = 654,402.30 × 120,688.97
  4. Step 4: Simplify right side
    436,258.49x = 78,979,139,552.63
  5. Step 5: Solve for x
    x = 78,979,139,552.63/436,258.49
  6. Step 6: Final answer
    x = 181,037.48

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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.