Home / 1,853,820.60-2,780,730.90-1,345,999.20

Finding the Fourth Proportional to 1,853,820.60, 2,780,730.90 and 1,345,999.20

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Solution

The fourth proportional to 1,853,820.60, 2,780,730.90 and 1,345,999.20 is: 2,018,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853,820.60 : 2,780,730.90 = 1,345,999.20 : x
  2. Step 2: Convert to fraction form
    1,853,820.60/2,780,730.90 = 1,345,999.20/x
  3. Step 3: Cross multiply
    1,853,820.60x = 2,780,730.90 × 1,345,999.20
  4. Step 4: Simplify right side
    1,853,820.60x = 3,742,861,566,815.28
  5. Step 5: Solve for x
    x = 3,742,861,566,815.28/1,853,820.60
  6. Step 6: Final answer
    x = 2,018,998.80

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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.