Home / 939,829.23-1,407,968.33-728,432.19

Finding the Fourth Proportional to 939,829.23, 1,407,968.33 and 728,432.19

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Solution

The fourth proportional to 939,829.23, 1,407,968.33 and 728,432.19 is: 1,091,272.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,829.23 : 1,407,968.33 = 728,432.19 : x
  2. Step 2: Convert to fraction form
    939,829.23/1,407,968.33 = 728,432.19/x
  3. Step 3: Cross multiply
    939,829.23x = 1,407,968.33 × 728,432.19
  4. Step 4: Simplify right side
    939,829.23x = 1,025,609,450,430.38
  5. Step 5: Solve for x
    x = 1,025,609,450,430.38/939,829.23
  6. Step 6: Final answer
    x = 1,091,272.14

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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.