Home / 742,003.20-1,113,047.88-209,479.65

Finding the Fourth Proportional to 742,003.20, 1,113,047.88 and 209,479.65

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Solution

The fourth proportional to 742,003.20, 1,113,047.88 and 209,479.65 is: 314,231.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,003.20 : 1,113,047.88 = 209,479.65 : x
  2. Step 2: Convert to fraction form
    742,003.20/1,113,047.88 = 209,479.65/x
  3. Step 3: Cross multiply
    742,003.20x = 1,113,047.88 × 209,479.65
  4. Step 4: Simplify right side
    742,003.20x = 233,160,880,335.64
  5. Step 5: Solve for x
    x = 233,160,880,335.64/742,003.20
  6. Step 6: Final answer
    x = 314,231.64

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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.