Home / 631,915.02-948,109.17-328,119.54

Finding the Fourth Proportional to 631,915.02, 948,109.17 and 328,119.54

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Solution

The fourth proportional to 631,915.02, 948,109.17 and 328,119.54 is: 492,302.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,915.02 : 948,109.17 = 328,119.54 : x
  2. Step 2: Convert to fraction form
    631,915.02/948,109.17 = 328,119.54/x
  3. Step 3: Cross multiply
    631,915.02x = 948,109.17 × 328,119.54
  4. Step 4: Simplify right side
    631,915.02x = 311,093,144,730.18
  5. Step 5: Solve for x
    x = 311,093,144,730.18/631,915.02
  6. Step 6: Final answer
    x = 492,302.18

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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.