Home / 852,734.79-1,278,427.46-320,196.51

Finding the Fourth Proportional to 852,734.79, 1,278,427.46 and 320,196.51

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Solution

The fourth proportional to 852,734.79, 1,278,427.46 and 320,196.51 is: 480,041.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,734.79 : 1,278,427.46 = 320,196.51 : x
  2. Step 2: Convert to fraction form
    852,734.79/1,278,427.46 = 320,196.51/x
  3. Step 3: Cross multiply
    852,734.79x = 1,278,427.46 × 320,196.51
  4. Step 4: Simplify right side
    852,734.79x = 409,348,009,379.18
  5. Step 5: Solve for x
    x = 409,348,009,379.18/852,734.79
  6. Step 6: Final answer
    x = 480,041.41

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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.