Home / 1,861,981.20-2,792,971.80-665,254.80

Finding the Fourth Proportional to 1,861,981.20, 2,792,971.80 and 665,254.80

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Solution

The fourth proportional to 1,861,981.20, 2,792,971.80 and 665,254.80 is: 997,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,981.20 : 2,792,971.80 = 665,254.80 : x
  2. Step 2: Convert to fraction form
    1,861,981.20/2,792,971.80 = 665,254.80/x
  3. Step 3: Cross multiply
    1,861,981.20x = 2,792,971.80 × 665,254.80
  4. Step 4: Simplify right side
    1,861,981.20x = 1,858,037,896,214.64
  5. Step 5: Solve for x
    x = 1,858,037,896,214.64/1,861,981.20
  6. Step 6: Final answer
    x = 997,882.20

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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.