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Finding the Fourth Proportional to 531,095.60, 796,643.40 and 342,138.80

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Solution

The fourth proportional to 531,095.60, 796,643.40 and 342,138.80 is: 513,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,095.60 : 796,643.40 = 342,138.80 : x
  2. Step 2: Convert to fraction form
    531,095.60/796,643.40 = 342,138.80/x
  3. Step 3: Cross multiply
    531,095.60x = 796,643.40 × 342,138.80
  4. Step 4: Simplify right side
    531,095.60x = 272,562,616,903.92
  5. Step 5: Solve for x
    x = 272,562,616,903.92/531,095.60
  6. Step 6: Final answer
    x = 513,208.20

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Similar ratio
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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.