Home / 401,823.90-602,735.85-313,143.75

Finding the Fourth Proportional to 401,823.90, 602,735.85 and 313,143.75

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Solution

The fourth proportional to 401,823.90, 602,735.85 and 313,143.75 is: 469,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,823.90 : 602,735.85 = 313,143.75 : x
  2. Step 2: Convert to fraction form
    401,823.90/602,735.85 = 313,143.75/x
  3. Step 3: Cross multiply
    401,823.90x = 602,735.85 × 313,143.75
  4. Step 4: Simplify right side
    401,823.90x = 188,742,964,328.44
  5. Step 5: Solve for x
    x = 188,742,964,328.44/401,823.90
  6. Step 6: Final answer
    x = 469,715.63

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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.