Home / 865,266.14-1,298,048.79-385,664.60

Finding the Fourth Proportional to 865,266.14, 1,298,048.79 and 385,664.60

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Solution

The fourth proportional to 865,266.14, 1,298,048.79 and 385,664.60 is: 578,563.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,266.14 : 1,298,048.79 = 385,664.60 : x
  2. Step 2: Convert to fraction form
    865,266.14/1,298,048.79 = 385,664.60/x
  3. Step 3: Cross multiply
    865,266.14x = 1,298,048.79 × 385,664.60
  4. Step 4: Simplify right side
    865,266.14x = 500,611,467,375.83
  5. Step 5: Solve for x
    x = 500,611,467,375.83/865,266.14
  6. Step 6: Final answer
    x = 578,563.57

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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.