Home / 637,559.05-879,831.40-351,078.43

Finding the Fourth Proportional to 637,559.05, 879,831.40 and 351,078.43

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Solution

The fourth proportional to 637,559.05, 879,831.40 and 351,078.43 is: 484,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,559.05 : 879,831.40 = 351,078.43 : x
  2. Step 2: Convert to fraction form
    637,559.05/879,831.40 = 351,078.43/x
  3. Step 3: Cross multiply
    637,559.05x = 879,831.40 × 351,078.43
  4. Step 4: Simplify right side
    637,559.05x = 308,889,820,422.15
  5. Step 5: Solve for x
    x = 308,889,820,422.15/637,559.05
  6. Step 6: Final answer
    x = 484,488.18

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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.