Home / 902,830.16-1,245,994.72-515,703.42

Finding the Fourth Proportional to 902,830.16, 1,245,994.72 and 515,703.42

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Solution

The fourth proportional to 902,830.16, 1,245,994.72 and 515,703.42 is: 711,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,830.16 : 1,245,994.72 = 515,703.42 : x
  2. Step 2: Convert to fraction form
    902,830.16/1,245,994.72 = 515,703.42/x
  3. Step 3: Cross multiply
    902,830.16x = 1,245,994.72 × 515,703.42
  4. Step 4: Simplify right side
    902,830.16x = 642,563,738,405.94
  5. Step 5: Solve for x
    x = 642,563,738,405.94/902,830.16
  6. Step 6: Final answer
    x = 711,721.61

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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.