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Finding the Fourth Proportional to 859,548.66, 1,289,323 and 298,583.70

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Solution

The fourth proportional to 859,548.66, 1,289,323 and 298,583.70 is: 447,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,548.66 : 1,289,323 = 298,583.70 : x
  2. Step 2: Convert to fraction form
    859,548.66/1,289,323 = 298,583.70/x
  3. Step 3: Cross multiply
    859,548.66x = 1,289,323 × 298,583.70
  4. Step 4: Simplify right side
    859,548.66x = 384,970,831,835.10
  5. Step 5: Solve for x
    x = 384,970,831,835.10/859,548.66
  6. Step 6: Final answer
    x = 447,875.55

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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.