Home / 742,522.80-1,113,782.94-269,207.40

Finding the Fourth Proportional to 742,522.80, 1,113,782.94 and 269,207.40

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Solution

The fourth proportional to 742,522.80, 1,113,782.94 and 269,207.40 is: 403,810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,522.80 : 1,113,782.94 = 269,207.40 : x
  2. Step 2: Convert to fraction form
    742,522.80/1,113,782.94 = 269,207.40/x
  3. Step 3: Cross multiply
    742,522.80x = 1,113,782.94 × 269,207.40
  4. Step 4: Simplify right side
    742,522.80x = 299,838,609,441.76
  5. Step 5: Solve for x
    x = 299,838,609,441.76/742,522.80
  6. Step 6: Final answer
    x = 403,810.64

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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.