Home / 890,574.32-1,335,731.88-259,318.64

Finding the Fourth Proportional to 890,574.32, 1,335,731.88 and 259,318.64

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Solution

The fourth proportional to 890,574.32, 1,335,731.88 and 259,318.64 is: 388,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,574.32 : 1,335,731.88 = 259,318.64 : x
  2. Step 2: Convert to fraction form
    890,574.32/1,335,731.88 = 259,318.64/x
  3. Step 3: Cross multiply
    890,574.32x = 1,335,731.88 × 259,318.64
  4. Step 4: Simplify right side
    890,574.32x = 346,380,174,526.24
  5. Step 5: Solve for x
    x = 346,380,174,526.24/890,574.32
  6. Step 6: Final answer
    x = 388,940.22

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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.