Home / 840,056.81-1,260,490.68-413,361.23

Finding the Fourth Proportional to 840,056.81, 1,260,490.68 and 413,361.23

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Solution

The fourth proportional to 840,056.81, 1,260,490.68 and 413,361.23 is: 620,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,056.81 : 1,260,490.68 = 413,361.23 : x
  2. Step 2: Convert to fraction form
    840,056.81/1,260,490.68 = 413,361.23/x
  3. Step 3: Cross multiply
    840,056.81x = 1,260,490.68 × 413,361.23
  4. Step 4: Simplify right side
    840,056.81x = 521,037,971,585.88
  5. Step 5: Solve for x
    x = 521,037,971,585.88/840,056.81
  6. Step 6: Final answer
    x = 620,241.36

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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.