Home / 1,208,831.48-1,668,191.32-665,008.64

Finding the Fourth Proportional to 1,208,831.48, 1,668,191.32 and 665,008.64

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Solution

The fourth proportional to 1,208,831.48, 1,668,191.32 and 665,008.64 is: 917,714.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,831.48 : 1,668,191.32 = 665,008.64 : x
  2. Step 2: Convert to fraction form
    1,208,831.48/1,668,191.32 = 665,008.64/x
  3. Step 3: Cross multiply
    1,208,831.48x = 1,668,191.32 × 665,008.64
  4. Step 4: Simplify right side
    1,208,831.48x = 1,109,361,640,973.00
  5. Step 5: Solve for x
    x = 1,109,361,640,973.00/1,208,831.48
  6. Step 6: Final answer
    x = 917,714.06

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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.