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Finding the Fourth Proportional to 573,277.70, 859,657.35 and 257,572.10

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Solution

The fourth proportional to 573,277.70, 859,657.35 and 257,572.10 is: 386,241.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,277.70 : 859,657.35 = 257,572.10 : x
  2. Step 2: Convert to fraction form
    573,277.70/859,657.35 = 257,572.10/x
  3. Step 3: Cross multiply
    573,277.70x = 859,657.35 × 257,572.10
  4. Step 4: Simplify right side
    573,277.70x = 221,423,748,919.94
  5. Step 5: Solve for x
    x = 221,423,748,919.94/573,277.70
  6. Step 6: Final answer
    x = 386,241.69

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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.