Home / 482,853.36-666,420.10-278,867.62

Finding the Fourth Proportional to 482,853.36, 666,420.10 and 278,867.62

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Solution

The fourth proportional to 482,853.36, 666,420.10 and 278,867.62 is: 384,884.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,853.36 : 666,420.10 = 278,867.62 : x
  2. Step 2: Convert to fraction form
    482,853.36/666,420.10 = 278,867.62/x
  3. Step 3: Cross multiply
    482,853.36x = 666,420.10 × 278,867.62
  4. Step 4: Simplify right side
    482,853.36x = 185,842,987,207.16
  5. Step 5: Solve for x
    x = 185,842,987,207.16/482,853.36
  6. Step 6: Final answer
    x = 384,884.94

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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.