Home / 1,920,315.60-2,880,902.43-722,248.30

Finding the Fourth Proportional to 1,920,315.60, 2,880,902.43 and 722,248.30

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Solution

The fourth proportional to 1,920,315.60, 2,880,902.43 and 722,248.30 is: 1,083,533.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,315.60 : 2,880,902.43 = 722,248.30 : x
  2. Step 2: Convert to fraction form
    1,920,315.60/2,880,902.43 = 722,248.30/x
  3. Step 3: Cross multiply
    1,920,315.60x = 2,880,902.43 × 722,248.30
  4. Step 4: Simplify right side
    1,920,315.60x = 2,080,726,882,533.37
  5. Step 5: Solve for x
    x = 2,080,726,882,533.37/1,920,315.60
  6. Step 6: Final answer
    x = 1,083,533.81

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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.