Home / 649,025.40-895,641.93-394,458.60

Finding the Fourth Proportional to 649,025.40, 895,641.93 and 394,458.60

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Solution

The fourth proportional to 649,025.40, 895,641.93 and 394,458.60 is: 544,344.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,025.40 : 895,641.93 = 394,458.60 : x
  2. Step 2: Convert to fraction form
    649,025.40/895,641.93 = 394,458.60/x
  3. Step 3: Cross multiply
    649,025.40x = 895,641.93 × 394,458.60
  4. Step 4: Simplify right side
    649,025.40x = 353,293,661,809.10
  5. Step 5: Solve for x
    x = 353,293,661,809.10/649,025.40
  6. Step 6: Final answer
    x = 544,344.89

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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.