Home / 1,315,904.20-1,969,190.70-896,000.20

Finding the Fourth Proportional to 1,315,904.20, 1,969,190.70 and 896,000.20

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Solution

The fourth proportional to 1,315,904.20, 1,969,190.70 and 896,000.20 is: 1,340,823.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,904.20 : 1,969,190.70 = 896,000.20 : x
  2. Step 2: Convert to fraction form
    1,315,904.20/1,969,190.70 = 896,000.20/x
  3. Step 3: Cross multiply
    1,315,904.20x = 1,969,190.70 × 896,000.20
  4. Step 4: Simplify right side
    1,315,904.20x = 1,764,395,261,038.14
  5. Step 5: Solve for x
    x = 1,764,395,261,038.14/1,315,904.20
  6. Step 6: Final answer
    x = 1,340,823.49

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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.