Home / 739,039.67-1,019,802.59-428,894.02

Finding the Fourth Proportional to 739,039.67, 1,019,802.59 and 428,894.02

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Solution

The fourth proportional to 739,039.67, 1,019,802.59 and 428,894.02 is: 591,831.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,039.67 : 1,019,802.59 = 428,894.02 : x
  2. Step 2: Convert to fraction form
    739,039.67/1,019,802.59 = 428,894.02/x
  3. Step 3: Cross multiply
    739,039.67x = 1,019,802.59 × 428,894.02
  4. Step 4: Simplify right side
    739,039.67x = 437,387,233,170.15
  5. Step 5: Solve for x
    x = 437,387,233,170.15/739,039.67
  6. Step 6: Final answer
    x = 591,831.88

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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.