Home / 677,664.17-1,015,822.51-339,673.23

Finding the Fourth Proportional to 677,664.17, 1,015,822.51 and 339,673.23

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Solution

The fourth proportional to 677,664.17, 1,015,822.51 and 339,673.23 is: 509,172.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,664.17 : 1,015,822.51 = 339,673.23 : x
  2. Step 2: Convert to fraction form
    677,664.17/1,015,822.51 = 339,673.23/x
  3. Step 3: Cross multiply
    677,664.17x = 1,015,822.51 × 339,673.23
  4. Step 4: Simplify right side
    677,664.17x = 345,047,713,078.41
  5. Step 5: Solve for x
    x = 345,047,713,078.41/677,664.17
  6. Step 6: Final answer
    x = 509,172.14

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1.5x scale

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.