Home / 693,181.80-1,039,772.70-338,423.40

Finding the Fourth Proportional to 693,181.80, 1,039,772.70 and 338,423.40

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Solution

The fourth proportional to 693,181.80, 1,039,772.70 and 338,423.40 is: 507,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,181.80 : 1,039,772.70 = 338,423.40 : x
  2. Step 2: Convert to fraction form
    693,181.80/1,039,772.70 = 338,423.40/x
  3. Step 3: Cross multiply
    693,181.80x = 1,039,772.70 × 338,423.40
  4. Step 4: Simplify right side
    693,181.80x = 351,883,412,361.18
  5. Step 5: Solve for x
    x = 351,883,412,361.18/693,181.80
  6. Step 6: Final answer
    x = 507,635.10

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Similar ratio
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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.