Home / 3,678,407.28-5,518,128.24-1,281,907.80

Finding the Fourth Proportional to 3,678,407.28, 5,518,128.24 and 1,281,907.80

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Solution

The fourth proportional to 3,678,407.28, 5,518,128.24 and 1,281,907.80 is: 1,923,041.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678,407.28 : 5,518,128.24 = 1,281,907.80 : x
  2. Step 2: Convert to fraction form
    3,678,407.28/5,518,128.24 = 1,281,907.80/x
  3. Step 3: Cross multiply
    3,678,407.28x = 5,518,128.24 × 1,281,907.80
  4. Step 4: Simplify right side
    3,678,407.28x = 7,073,731,632,256.27
  5. Step 5: Solve for x
    x = 7,073,731,632,256.27/3,678,407.28
  6. Step 6: Final answer
    x = 1,923,041.98

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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.