Home / 1,319,685.82-1,980,928.55-1,168,862

Finding the Fourth Proportional to 1,319,685.82, 1,980,928.55 and 1,168,862

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Solution

The fourth proportional to 1,319,685.82, 1,980,928.55 and 1,168,862 is: 1,754,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,685.82 : 1,980,928.55 = 1,168,862 : x
  2. Step 2: Convert to fraction form
    1,319,685.82/1,980,928.55 = 1,168,862/x
  3. Step 3: Cross multiply
    1,319,685.82x = 1,980,928.55 × 1,168,862
  4. Step 4: Simplify right side
    1,319,685.82x = 2,315,432,106,810.10
  5. Step 5: Solve for x
    x = 2,315,432,106,810.10/1,319,685.82
  6. Step 6: Final answer
    x = 1,754,532.84

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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.