Home / 2,920,860.32-4,030,742.80-1,631,719.20

Finding the Fourth Proportional to 2,920,860.32, 4,030,742.80 and 1,631,719.20

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Solution

The fourth proportional to 2,920,860.32, 4,030,742.80 and 1,631,719.20 is: 2,251,747.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920,860.32 : 4,030,742.80 = 1,631,719.20 : x
  2. Step 2: Convert to fraction form
    2,920,860.32/4,030,742.80 = 1,631,719.20/x
  3. Step 3: Cross multiply
    2,920,860.32x = 4,030,742.80 × 1,631,719.20
  4. Step 4: Simplify right side
    2,920,860.32x = 6,577,040,417,021.76
  5. Step 5: Solve for x
    x = 6,577,040,417,021.76/2,920,860.32
  6. Step 6: Final answer
    x = 2,251,747.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.