Home / 714,968.12-986,244.20-428,322.20

Finding the Fourth Proportional to 714,968.12, 986,244.20 and 428,322.20

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Solution

The fourth proportional to 714,968.12, 986,244.20 and 428,322.20 is: 590,837.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,968.12 : 986,244.20 = 428,322.20 : x
  2. Step 2: Convert to fraction form
    714,968.12/986,244.20 = 428,322.20/x
  3. Step 3: Cross multiply
    714,968.12x = 986,244.20 × 428,322.20
  4. Step 4: Simplify right side
    714,968.12x = 422,430,285,481.24
  5. Step 5: Solve for x
    x = 422,430,285,481.24/714,968.12
  6. Step 6: Final answer
    x = 590,837.93

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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.