Home / 478,976.38-660,740.04-297,619.40

Finding the Fourth Proportional to 478,976.38, 660,740.04 and 297,619.40

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Solution

The fourth proportional to 478,976.38, 660,740.04 and 297,619.40 is: 410,561.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,976.38 : 660,740.04 = 297,619.40 : x
  2. Step 2: Convert to fraction form
    478,976.38/660,740.04 = 297,619.40/x
  3. Step 3: Cross multiply
    478,976.38x = 660,740.04 × 297,619.40
  4. Step 4: Simplify right side
    478,976.38x = 196,649,055,912.63
  5. Step 5: Solve for x
    x = 196,649,055,912.63/478,976.38
  6. Step 6: Final answer
    x = 410,561.07

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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.