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Finding the Fourth Proportional to 559,586.51, 839,479.50 and 260,404.91

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Solution

The fourth proportional to 559,586.51, 839,479.50 and 260,404.91 is: 390,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,586.51 : 839,479.50 = 260,404.91 : x
  2. Step 2: Convert to fraction form
    559,586.51/839,479.50 = 260,404.91/x
  3. Step 3: Cross multiply
    559,586.51x = 839,479.50 × 260,404.91
  4. Step 4: Simplify right side
    559,586.51x = 218,604,583,644.35
  5. Step 5: Solve for x
    x = 218,604,583,644.35/559,586.51
  6. Step 6: Final answer
    x = 390,653.78

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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.