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Finding the Fourth Proportional to 668,330.68, 922,094.78 and 409,942.08

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Solution

The fourth proportional to 668,330.68, 922,094.78 and 409,942.08 is: 565,596.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,330.68 : 922,094.78 = 409,942.08 : x
  2. Step 2: Convert to fraction form
    668,330.68/922,094.78 = 409,942.08/x
  3. Step 3: Cross multiply
    668,330.68x = 922,094.78 × 409,942.08
  4. Step 4: Simplify right side
    668,330.68x = 378,005,452,070.34
  5. Step 5: Solve for x
    x = 378,005,452,070.34/668,330.68
  6. Step 6: Final answer
    x = 565,596.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.