Home / 742,024.89-1,113,040.57-315,450.81

Finding the Fourth Proportional to 742,024.89, 1,113,040.57 and 315,450.81

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Solution

The fourth proportional to 742,024.89, 1,113,040.57 and 315,450.81 is: 473,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,024.89 : 1,113,040.57 = 315,450.81 : x
  2. Step 2: Convert to fraction form
    742,024.89/1,113,040.57 = 315,450.81/x
  3. Step 3: Cross multiply
    742,024.89x = 1,113,040.57 × 315,450.81
  4. Step 4: Simplify right side
    742,024.89x = 351,109,543,015.53
  5. Step 5: Solve for x
    x = 351,109,543,015.53/742,024.89
  6. Step 6: Final answer
    x = 473,177.58

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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.