Home / 742,420.41-1,024,540.82-402,888.66

Finding the Fourth Proportional to 742,420.41, 1,024,540.82 and 402,888.66

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Solution

The fourth proportional to 742,420.41, 1,024,540.82 and 402,888.66 is: 555,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,420.41 : 1,024,540.82 = 402,888.66 : x
  2. Step 2: Convert to fraction form
    742,420.41/1,024,540.82 = 402,888.66/x
  3. Step 3: Cross multiply
    742,420.41x = 1,024,540.82 × 402,888.66
  4. Step 4: Simplify right side
    742,420.41x = 412,775,878,085.10
  5. Step 5: Solve for x
    x = 412,775,878,085.10/742,420.41
  6. Step 6: Final answer
    x = 555,986.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.