Home / 1,008,127.02-1,511,020.50-408,342.28

Finding the Fourth Proportional to 1,008,127.02, 1,511,020.50 and 408,342.28

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Solution

The fourth proportional to 1,008,127.02, 1,511,020.50 and 408,342.28 is: 612,039.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,127.02 : 1,511,020.50 = 408,342.28 : x
  2. Step 2: Convert to fraction form
    1,008,127.02/1,511,020.50 = 408,342.28/x
  3. Step 3: Cross multiply
    1,008,127.02x = 1,511,020.50 × 408,342.28
  4. Step 4: Simplify right side
    1,008,127.02x = 617,013,556,096.74
  5. Step 5: Solve for x
    x = 617,013,556,096.74/1,008,127.02
  6. Step 6: Final answer
    x = 612,039.50

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Double scale
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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.