Home / 4,260,283.60-6,390,481.88-1,420,396.64

Finding the Fourth Proportional to 4,260,283.60, 6,390,481.88 and 1,420,396.64

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Solution

The fourth proportional to 4,260,283.60, 6,390,481.88 and 1,420,396.64 is: 2,130,613.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260,283.60 : 6,390,481.88 = 1,420,396.64 : x
  2. Step 2: Convert to fraction form
    4,260,283.60/6,390,481.88 = 1,420,396.64/x
  3. Step 3: Cross multiply
    4,260,283.60x = 6,390,481.88 × 1,420,396.64
  4. Step 4: Simplify right side
    4,260,283.60x = 9,077,018,990,332.88
  5. Step 5: Solve for x
    x = 9,077,018,990,332.88/4,260,283.60
  6. Step 6: Final answer
    x = 2,130,613.79

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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.