Home / 738,960.06-1,019,790.04-428,838.63

Finding the Fourth Proportional to 738,960.06, 1,019,790.04 and 428,838.63

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Solution

The fourth proportional to 738,960.06, 1,019,790.04 and 428,838.63 is: 591,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,960.06 : 1,019,790.04 = 428,838.63 : x
  2. Step 2: Convert to fraction form
    738,960.06/1,019,790.04 = 428,838.63/x
  3. Step 3: Cross multiply
    738,960.06x = 1,019,790.04 × 428,838.63
  4. Step 4: Simplify right side
    738,960.06x = 437,325,363,641.25
  5. Step 5: Solve for x
    x = 437,325,363,641.25/738,960.06
  6. Step 6: Final answer
    x = 591,811.91

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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.