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Finding the Fourth Proportional to 578,751.60, 867,835.80 and 342,166.80

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Solution

The fourth proportional to 578,751.60, 867,835.80 and 342,166.80 is: 513,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,751.60 : 867,835.80 = 342,166.80 : x
  2. Step 2: Convert to fraction form
    578,751.60/867,835.80 = 342,166.80/x
  3. Step 3: Cross multiply
    578,751.60x = 867,835.80 × 342,166.80
  4. Step 4: Simplify right side
    578,751.60x = 296,944,598,611.44
  5. Step 5: Solve for x
    x = 296,944,598,611.44/578,751.60
  6. Step 6: Final answer
    x = 513,077.80

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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.