Home / 1,821,915.40-2,732,873.10-1,685,057.80

Finding the Fourth Proportional to 1,821,915.40, 2,732,873.10 and 1,685,057.80

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Solution

The fourth proportional to 1,821,915.40, 2,732,873.10 and 1,685,057.80 is: 2,527,586.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,915.40 : 2,732,873.10 = 1,685,057.80 : x
  2. Step 2: Convert to fraction form
    1,821,915.40/2,732,873.10 = 1,685,057.80/x
  3. Step 3: Cross multiply
    1,821,915.40x = 2,732,873.10 × 1,685,057.80
  4. Step 4: Simplify right side
    1,821,915.40x = 4,605,049,133,565.18
  5. Step 5: Solve for x
    x = 4,605,049,133,565.18/1,821,915.40
  6. Step 6: Final answer
    x = 2,527,586.70

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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.