Home / 1,909,120.80-2,863,681.20-1,058,815.20

Finding the Fourth Proportional to 1,909,120.80, 2,863,681.20 and 1,058,815.20

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Solution

The fourth proportional to 1,909,120.80, 2,863,681.20 and 1,058,815.20 is: 1,588,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,120.80 : 2,863,681.20 = 1,058,815.20 : x
  2. Step 2: Convert to fraction form
    1,909,120.80/2,863,681.20 = 1,058,815.20/x
  3. Step 3: Cross multiply
    1,909,120.80x = 2,863,681.20 × 1,058,815.20
  4. Step 4: Simplify right side
    1,909,120.80x = 3,032,109,182,514.24
  5. Step 5: Solve for x
    x = 3,032,109,182,514.24/1,909,120.80
  6. Step 6: Final answer
    x = 1,588,222.80

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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.