Home / 631,916.02-948,110.67-328,120.54

Finding the Fourth Proportional to 631,916.02, 948,110.67 and 328,120.54

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Solution

The fourth proportional to 631,916.02, 948,110.67 and 328,120.54 is: 492,303.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,916.02 : 948,110.67 = 328,120.54 : x
  2. Step 2: Convert to fraction form
    631,916.02/948,110.67 = 328,120.54/x
  3. Step 3: Cross multiply
    631,916.02x = 948,110.67 × 328,120.54
  4. Step 4: Simplify right side
    631,916.02x = 311,094,585,020.16
  5. Step 5: Solve for x
    x = 311,094,585,020.16/631,916.02
  6. Step 6: Final answer
    x = 492,303.68

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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.