Home / 1,620,729.10-2,431,514.03-861,946.63

Finding the Fourth Proportional to 1,620,729.10, 2,431,514.03 and 861,946.63

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Solution

The fourth proportional to 1,620,729.10, 2,431,514.03 and 861,946.63 is: 1,293,143.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,729.10 : 2,431,514.03 = 861,946.63 : x
  2. Step 2: Convert to fraction form
    1,620,729.10/2,431,514.03 = 861,946.63/x
  3. Step 3: Cross multiply
    1,620,729.10x = 2,431,514.03 × 861,946.63
  4. Step 4: Simplify right side
    1,620,729.10x = 2,095,835,334,890.73
  5. Step 5: Solve for x
    x = 2,095,835,334,890.73/1,620,729.10
  6. Step 6: Final answer
    x = 1,293,143.52

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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.