Home / 1,430,274-2,145,377.76-720,111.36

Finding the Fourth Proportional to 1,430,274, 2,145,377.76 and 720,111.36

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Solution

The fourth proportional to 1,430,274, 2,145,377.76 and 720,111.36 is: 1,080,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,274 : 2,145,377.76 = 720,111.36 : x
  2. Step 2: Convert to fraction form
    1,430,274/2,145,377.76 = 720,111.36/x
  3. Step 3: Cross multiply
    1,430,274x = 2,145,377.76 × 720,111.36
  4. Step 4: Simplify right side
    1,430,274x = 1,544,910,896,467.35
  5. Step 5: Solve for x
    x = 1,544,910,896,467.35/1,430,274
  6. Step 6: Final answer
    x = 1,080,150.30

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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.