Home / 551,868.46-828,381.84-489,090.22

Finding the Fourth Proportional to 551,868.46, 828,381.84 and 489,090.22

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Solution

The fourth proportional to 551,868.46, 828,381.84 and 489,090.22 is: 734,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,868.46 : 828,381.84 = 489,090.22 : x
  2. Step 2: Convert to fraction form
    551,868.46/828,381.84 = 489,090.22/x
  3. Step 3: Cross multiply
    551,868.46x = 828,381.84 × 489,090.22
  4. Step 4: Simplify right side
    551,868.46x = 405,153,456,369.61
  5. Step 5: Solve for x
    x = 405,153,456,369.61/551,868.46
  6. Step 6: Final answer
    x = 734,148.60

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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.