Home / 1,555,647.90-2,146,793.67-840,255.90

Finding the Fourth Proportional to 1,555,647.90, 2,146,793.67 and 840,255.90

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Solution

The fourth proportional to 1,555,647.90, 2,146,793.67 and 840,255.90 is: 1,159,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,647.90 : 2,146,793.67 = 840,255.90 : x
  2. Step 2: Convert to fraction form
    1,555,647.90/2,146,793.67 = 840,255.90/x
  3. Step 3: Cross multiply
    1,555,647.90x = 2,146,793.67 × 840,255.90
  4. Step 4: Simplify right side
    1,555,647.90x = 1,803,856,047,300.15
  5. Step 5: Solve for x
    x = 1,803,856,047,300.15/1,555,647.90
  6. Step 6: Final answer
    x = 1,159,552.91

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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.