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Finding the Fourth Proportional to 572,848.56, 859,515.84 and 306,540

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Solution

The fourth proportional to 572,848.56, 859,515.84 and 306,540 is: 459,940.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,848.56 : 859,515.84 = 306,540 : x
  2. Step 2: Convert to fraction form
    572,848.56/859,515.84 = 306,540/x
  3. Step 3: Cross multiply
    572,848.56x = 859,515.84 × 306,540
  4. Step 4: Simplify right side
    572,848.56x = 263,475,985,593.60
  5. Step 5: Solve for x
    x = 263,475,985,593.60/572,848.56
  6. Step 6: Final answer
    x = 459,940.03

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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.