Home / 1,420,525.80-2,128,455.90-1,182,580.20

Finding the Fourth Proportional to 1,420,525.80, 2,128,455.90 and 1,182,580.20

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Solution

The fourth proportional to 1,420,525.80, 2,128,455.90 and 1,182,580.20 is: 1,771,928.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,525.80 : 2,128,455.90 = 1,182,580.20 : x
  2. Step 2: Convert to fraction form
    1,420,525.80/2,128,455.90 = 1,182,580.20/x
  3. Step 3: Cross multiply
    1,420,525.80x = 2,128,455.90 × 1,182,580.20
  4. Step 4: Simplify right side
    1,420,525.80x = 2,517,069,803,913.18
  5. Step 5: Solve for x
    x = 2,517,069,803,913.18/1,420,525.80
  6. Step 6: Final answer
    x = 1,771,928.26

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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.