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Finding the Fourth Proportional to 559,763.20, 839,404.88 and 260,212.52

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Solution

The fourth proportional to 559,763.20, 839,404.88 and 260,212.52 is: 390,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,763.20 : 839,404.88 = 260,212.52 : x
  2. Step 2: Convert to fraction form
    559,763.20/839,404.88 = 260,212.52/x
  3. Step 3: Cross multiply
    559,763.20x = 839,404.88 × 260,212.52
  4. Step 4: Simplify right side
    559,763.20x = 218,423,659,125.10
  5. Step 5: Solve for x
    x = 218,423,659,125.10/559,763.20
  6. Step 6: Final answer
    x = 390,207.25

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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.