Home / 1,355,888.21-1,871,120.57-744,051.20

Finding the Fourth Proportional to 1,355,888.21, 1,871,120.57 and 744,051.20

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Solution

The fourth proportional to 1,355,888.21, 1,871,120.57 and 744,051.20 is: 1,026,787.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,888.21 : 1,871,120.57 = 744,051.20 : x
  2. Step 2: Convert to fraction form
    1,355,888.21/1,871,120.57 = 744,051.20/x
  3. Step 3: Cross multiply
    1,355,888.21x = 1,871,120.57 × 744,051.20
  4. Step 4: Simplify right side
    1,355,888.21x = 1,392,209,492,377.33
  5. Step 5: Solve for x
    x = 1,392,209,492,377.33/1,355,888.21
  6. Step 6: Final answer
    x = 1,026,787.82

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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.