Home / 478,965.54-661,016.82-275,043.18

Finding the Fourth Proportional to 478,965.54, 661,016.82 and 275,043.18

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Solution

The fourth proportional to 478,965.54, 661,016.82 and 275,043.18 is: 379,585.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,965.54 : 661,016.82 = 275,043.18 : x
  2. Step 2: Convert to fraction form
    478,965.54/661,016.82 = 275,043.18/x
  3. Step 3: Cross multiply
    478,965.54x = 661,016.82 × 275,043.18
  4. Step 4: Simplify right side
    478,965.54x = 181,808,168,206.29
  5. Step 5: Solve for x
    x = 181,808,168,206.29/478,965.54
  6. Step 6: Final answer
    x = 379,585.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.