Home / 1,291,308.03-1,780,943.90-1,146,219.75

Finding the Fourth Proportional to 1,291,308.03, 1,780,943.90 and 1,146,219.75

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Solution

The fourth proportional to 1,291,308.03, 1,780,943.90 and 1,146,219.75 is: 1,580,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,308.03 : 1,780,943.90 = 1,146,219.75 : x
  2. Step 2: Convert to fraction form
    1,291,308.03/1,780,943.90 = 1,146,219.75/x
  3. Step 3: Cross multiply
    1,291,308.03x = 1,780,943.90 × 1,146,219.75
  4. Step 4: Simplify right side
    1,291,308.03x = 2,041,353,066,090.93
  5. Step 5: Solve for x
    x = 2,041,353,066,090.93/1,291,308.03
  6. Step 6: Final answer
    x = 1,580,841.30

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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.