Home / 2,872,478.81-4,308,865.83-742,581.38

Finding the Fourth Proportional to 2,872,478.81, 4,308,865.83 and 742,581.38

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Solution

The fourth proportional to 2,872,478.81, 4,308,865.83 and 742,581.38 is: 1,113,910.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,478.81 : 4,308,865.83 = 742,581.38 : x
  2. Step 2: Convert to fraction form
    2,872,478.81/4,308,865.83 = 742,581.38/x
  3. Step 3: Cross multiply
    2,872,478.81x = 4,308,865.83 × 742,581.38
  4. Step 4: Simplify right side
    2,872,478.81x = 3,199,683,512,731.92
  5. Step 5: Solve for x
    x = 3,199,683,512,731.92/2,872,478.81
  6. Step 6: Final answer
    x = 1,113,910.23

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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.