Home / 3,428,328.12-5,142,586.95-1,911,162.48

Finding the Fourth Proportional to 3,428,328.12, 5,142,586.95 and 1,911,162.48

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Solution

The fourth proportional to 3,428,328.12, 5,142,586.95 and 1,911,162.48 is: 2,866,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428,328.12 : 5,142,586.95 = 1,911,162.48 : x
  2. Step 2: Convert to fraction form
    3,428,328.12/5,142,586.95 = 1,911,162.48/x
  3. Step 3: Cross multiply
    3,428,328.12x = 5,142,586.95 × 1,911,162.48
  4. Step 4: Simplify right side
    3,428,328.12x = 9,828,319,228,977.64
  5. Step 5: Solve for x
    x = 9,828,319,228,977.64/3,428,328.12
  6. Step 6: Final answer
    x = 2,866,796.55

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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.