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Finding the Fourth Proportional to 608,677.96, 840,090.90 and 407,822.92

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Solution

The fourth proportional to 608,677.96, 840,090.90 and 407,822.92 is: 562,872.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,677.96 : 840,090.90 = 407,822.92 : x
  2. Step 2: Convert to fraction form
    608,677.96/840,090.90 = 407,822.92/x
  3. Step 3: Cross multiply
    608,677.96x = 840,090.90 × 407,822.92
  4. Step 4: Simplify right side
    608,677.96x = 342,608,323,903.43
  5. Step 5: Solve for x
    x = 342,608,323,903.43/608,677.96
  6. Step 6: Final answer
    x = 562,872.89

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1.5x scale

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.