Home / 674,664.24-931,232.52-388,386.48

Finding the Fourth Proportional to 674,664.24, 931,232.52 and 388,386.48

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Solution

The fourth proportional to 674,664.24, 931,232.52 and 388,386.48 is: 536,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,664.24 : 931,232.52 = 388,386.48 : x
  2. Step 2: Convert to fraction form
    674,664.24/931,232.52 = 388,386.48/x
  3. Step 3: Cross multiply
    674,664.24x = 931,232.52 × 388,386.48
  4. Step 4: Simplify right side
    674,664.24x = 361,678,120,504.33
  5. Step 5: Solve for x
    x = 361,678,120,504.33/674,664.24
  6. Step 6: Final answer
    x = 536,086.10

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1.5x scale

Why These Related Problems?

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