Home / 1,268,320.80-1,902,766.32-426,848.16

Finding the Fourth Proportional to 1,268,320.80, 1,902,766.32 and 426,848.16

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Solution

The fourth proportional to 1,268,320.80, 1,902,766.32 and 426,848.16 is: 640,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,320.80 : 1,902,766.32 = 426,848.16 : x
  2. Step 2: Convert to fraction form
    1,268,320.80/1,902,766.32 = 426,848.16/x
  3. Step 3: Cross multiply
    1,268,320.80x = 1,902,766.32 × 426,848.16
  4. Step 4: Simplify right side
    1,268,320.80x = 812,192,302,601.97
  5. Step 5: Solve for x
    x = 812,192,302,601.97/1,268,320.80
  6. Step 6: Final answer
    x = 640,368.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.