Home / 810,831.66-1,118,940.39-448,264.74

Finding the Fourth Proportional to 810,831.66, 1,118,940.39 and 448,264.74

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Solution

The fourth proportional to 810,831.66, 1,118,940.39 and 448,264.74 is: 618,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,831.66 : 1,118,940.39 = 448,264.74 : x
  2. Step 2: Convert to fraction form
    810,831.66/1,118,940.39 = 448,264.74/x
  3. Step 3: Cross multiply
    810,831.66x = 1,118,940.39 × 448,264.74
  4. Step 4: Simplify right side
    810,831.66x = 501,581,522,998.85
  5. Step 5: Solve for x
    x = 501,581,522,998.85/810,831.66
  6. Step 6: Final answer
    x = 618,601.30

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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.