Home / 2,872,288.72-4,308,420.12-742,191.76

Finding the Fourth Proportional to 2,872,288.72, 4,308,420.12 and 742,191.76

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Solution

The fourth proportional to 2,872,288.72, 4,308,420.12 and 742,191.76 is: 1,113,284.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,288.72 : 4,308,420.12 = 742,191.76 : x
  2. Step 2: Convert to fraction form
    2,872,288.72/4,308,420.12 = 742,191.76/x
  3. Step 3: Cross multiply
    2,872,288.72x = 4,308,420.12 × 742,191.76
  4. Step 4: Simplify right side
    2,872,288.72x = 3,197,673,911,682.21
  5. Step 5: Solve for x
    x = 3,197,673,911,682.21/2,872,288.72
  6. Step 6: Final answer
    x = 1,113,284.29

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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.