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Finding the Fourth Proportional to 586,736.88, 879,964.40 and 270,890.32

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Solution

The fourth proportional to 586,736.88, 879,964.40 and 270,890.32 is: 406,270.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,736.88 : 879,964.40 = 270,890.32 : x
  2. Step 2: Convert to fraction form
    586,736.88/879,964.40 = 270,890.32/x
  3. Step 3: Cross multiply
    586,736.88x = 879,964.40 × 270,890.32
  4. Step 4: Simplify right side
    586,736.88x = 238,373,837,904.61
  5. Step 5: Solve for x
    x = 238,373,837,904.61/586,736.88
  6. Step 6: Final answer
    x = 406,270.42

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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.