Home / 4,678,931.28-7,019,065.56-1,440,742.44

Finding the Fourth Proportional to 4,678,931.28, 7,019,065.56 and 1,440,742.44

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Solution

The fourth proportional to 4,678,931.28, 7,019,065.56 and 1,440,742.44 is: 2,161,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678,931.28 : 7,019,065.56 = 1,440,742.44 : x
  2. Step 2: Convert to fraction form
    4,678,931.28/7,019,065.56 = 1,440,742.44/x
  3. Step 3: Cross multiply
    4,678,931.28x = 7,019,065.56 × 1,440,742.44
  4. Step 4: Simplify right side
    4,678,931.28x = 10,112,665,641,434.37
  5. Step 5: Solve for x
    x = 10,112,665,641,434.37/4,678,931.28
  6. Step 6: Final answer
    x = 2,161,319.55

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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.