Home / 1,915,269.20-2,872,903.80-778,029.20

Finding the Fourth Proportional to 1,915,269.20, 2,872,903.80 and 778,029.20

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Solution

The fourth proportional to 1,915,269.20, 2,872,903.80 and 778,029.20 is: 1,167,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,269.20 : 2,872,903.80 = 778,029.20 : x
  2. Step 2: Convert to fraction form
    1,915,269.20/2,872,903.80 = 778,029.20/x
  3. Step 3: Cross multiply
    1,915,269.20x = 2,872,903.80 × 778,029.20
  4. Step 4: Simplify right side
    1,915,269.20x = 2,235,203,045,190.96
  5. Step 5: Solve for x
    x = 2,235,203,045,190.96/1,915,269.20
  6. Step 6: Final answer
    x = 1,167,043.80

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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.