Home / 1,290,254.80-1,934,460.60-579,701.20

Finding the Fourth Proportional to 1,290,254.80, 1,934,460.60 and 579,701.20

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Solution

The fourth proportional to 1,290,254.80, 1,934,460.60 and 579,701.20 is: 869,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,254.80 : 1,934,460.60 = 579,701.20 : x
  2. Step 2: Convert to fraction form
    1,290,254.80/1,934,460.60 = 579,701.20/x
  3. Step 3: Cross multiply
    1,290,254.80x = 1,934,460.60 × 579,701.20
  4. Step 4: Simplify right side
    1,290,254.80x = 1,121,409,131,172.72
  5. Step 5: Solve for x
    x = 1,121,409,131,172.72/1,290,254.80
  6. Step 6: Final answer
    x = 869,137.73

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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.