Home / 790,831.82-1,091,348.50-428,256.07

Finding the Fourth Proportional to 790,831.82, 1,091,348.50 and 428,256.07

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Solution

The fourth proportional to 790,831.82, 1,091,348.50 and 428,256.07 is: 590,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,831.82 : 1,091,348.50 = 428,256.07 : x
  2. Step 2: Convert to fraction form
    790,831.82/1,091,348.50 = 428,256.07/x
  3. Step 3: Cross multiply
    790,831.82x = 1,091,348.50 × 428,256.07
  4. Step 4: Simplify right side
    790,831.82x = 467,376,615,811.38
  5. Step 5: Solve for x
    x = 467,376,615,811.38/790,831.82
  6. Step 6: Final answer
    x = 590,993.69

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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.