Home / 1,008,412.40-1,512,621.60-260,458.40

Finding the Fourth Proportional to 1,008,412.40, 1,512,621.60 and 260,458.40

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Solution

The fourth proportional to 1,008,412.40, 1,512,621.60 and 260,458.40 is: 390,688.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,412.40 : 1,512,621.60 = 260,458.40 : x
  2. Step 2: Convert to fraction form
    1,008,412.40/1,512,621.60 = 260,458.40/x
  3. Step 3: Cross multiply
    1,008,412.40x = 1,512,621.60 × 260,458.40
  4. Step 4: Simplify right side
    1,008,412.40x = 393,975,001,741.44
  5. Step 5: Solve for x
    x = 393,975,001,741.44/1,008,412.40
  6. Step 6: Final answer
    x = 390,688.37

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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.