Home / 1,726,783.20-2,590,174.80-1,129,586.40

Finding the Fourth Proportional to 1,726,783.20, 2,590,174.80 and 1,129,586.40

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Solution

The fourth proportional to 1,726,783.20, 2,590,174.80 and 1,129,586.40 is: 1,694,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726,783.20 : 2,590,174.80 = 1,129,586.40 : x
  2. Step 2: Convert to fraction form
    1,726,783.20/2,590,174.80 = 1,129,586.40/x
  3. Step 3: Cross multiply
    1,726,783.20x = 2,590,174.80 × 1,129,586.40
  4. Step 4: Simplify right side
    1,726,783.20x = 2,925,826,227,702.72
  5. Step 5: Solve for x
    x = 2,925,826,227,702.72/1,726,783.20
  6. Step 6: Final answer
    x = 1,694,379.60

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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.