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Finding the Fourth Proportional to 978,501.60, 1,467,898.56 and 347,362.56

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Solution

The fourth proportional to 978,501.60, 1,467,898.56 and 347,362.56 is: 521,095.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,501.60 : 1,467,898.56 = 347,362.56 : x
  2. Step 2: Convert to fraction form
    978,501.60/1,467,898.56 = 347,362.56/x
  3. Step 3: Cross multiply
    978,501.60x = 1,467,898.56 × 347,362.56
  4. Step 4: Simplify right side
    978,501.60x = 509,893,001,621.91
  5. Step 5: Solve for x
    x = 509,893,001,621.91/978,501.60
  6. Step 6: Final answer
    x = 521,095.73

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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.