Home / 1,559,742.20-2,152,075.35-905,979.75

Finding the Fourth Proportional to 1,559,742.20, 2,152,075.35 and 905,979.75

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Solution

The fourth proportional to 1,559,742.20, 2,152,075.35 and 905,979.75 is: 1,250,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559,742.20 : 2,152,075.35 = 905,979.75 : x
  2. Step 2: Convert to fraction form
    1,559,742.20/2,152,075.35 = 905,979.75/x
  3. Step 3: Cross multiply
    1,559,742.20x = 2,152,075.35 × 905,979.75
  4. Step 4: Simplify right side
    1,559,742.20x = 1,949,736,696,361.12
  5. Step 5: Solve for x
    x = 1,949,736,696,361.12/1,559,742.20
  6. Step 6: Final answer
    x = 1,250,037.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.