Home / 1,355,902.20-1,871,139.83-744,065.19

Finding the Fourth Proportional to 1,355,902.20, 1,871,139.83 and 744,065.19

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Solution

The fourth proportional to 1,355,902.20, 1,871,139.83 and 744,065.19 is: 1,026,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,902.20 : 1,871,139.83 = 744,065.19 : x
  2. Step 2: Convert to fraction form
    1,355,902.20/1,871,139.83 = 744,065.19/x
  3. Step 3: Cross multiply
    1,355,902.20x = 1,871,139.83 × 744,065.19
  4. Step 4: Simplify right side
    1,355,902.20x = 1,392,250,009,405.19
  5. Step 5: Solve for x
    x = 1,392,250,009,405.19/1,355,902.20
  6. Step 6: Final answer
    x = 1,026,807.10

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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.