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Finding the Fourth Proportional to 573,020.88, 859,236 and 257,207.08

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Solution

The fourth proportional to 573,020.88, 859,236 and 257,207.08 is: 385,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,020.88 : 859,236 = 257,207.08 : x
  2. Step 2: Convert to fraction form
    573,020.88/859,236 = 257,207.08/x
  3. Step 3: Cross multiply
    573,020.88x = 859,236 × 257,207.08
  4. Step 4: Simplify right side
    573,020.88x = 221,001,582,590.88
  5. Step 5: Solve for x
    x = 221,001,582,590.88/573,020.88
  6. Step 6: Final answer
    x = 385,678.06

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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.