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Finding the Fourth Proportional to 612,410.76, 918,324.54 and 233,350.20

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Solution

The fourth proportional to 612,410.76, 918,324.54 and 233,350.20 is: 349,914.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,410.76 : 918,324.54 = 233,350.20 : x
  2. Step 2: Convert to fraction form
    612,410.76/918,324.54 = 233,350.20/x
  3. Step 3: Cross multiply
    612,410.76x = 918,324.54 × 233,350.20
  4. Step 4: Simplify right side
    612,410.76x = 214,291,215,073.91
  5. Step 5: Solve for x
    x = 214,291,215,073.91/612,410.76
  6. Step 6: Final answer
    x = 349,914.19

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1.5x scale

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.