Home / 1,243,445.22-1,716,164.16-720,079.71

Finding the Fourth Proportional to 1,243,445.22, 1,716,164.16 and 720,079.71

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Solution

The fourth proportional to 1,243,445.22, 1,716,164.16 and 720,079.71 is: 993,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,445.22 : 1,716,164.16 = 720,079.71 : x
  2. Step 2: Convert to fraction form
    1,243,445.22/1,716,164.16 = 720,079.71/x
  3. Step 3: Cross multiply
    1,243,445.22x = 1,716,164.16 × 720,079.71
  4. Step 4: Simplify right side
    1,243,445.22x = 1,235,774,990,645.19
  5. Step 5: Solve for x
    x = 1,235,774,990,645.19/1,243,445.22
  6. Step 6: Final answer
    x = 993,831.47

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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.