Home / 1,281,987.60-1,922,981.40-1,116,099.60

Finding the Fourth Proportional to 1,281,987.60, 1,922,981.40 and 1,116,099.60

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Solution

The fourth proportional to 1,281,987.60, 1,922,981.40 and 1,116,099.60 is: 1,674,149.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,987.60 : 1,922,981.40 = 1,116,099.60 : x
  2. Step 2: Convert to fraction form
    1,281,987.60/1,922,981.40 = 1,116,099.60/x
  3. Step 3: Cross multiply
    1,281,987.60x = 1,922,981.40 × 1,116,099.60
  4. Step 4: Simplify right side
    1,281,987.60x = 2,146,238,771,347.44
  5. Step 5: Solve for x
    x = 2,146,238,771,347.44/1,281,987.60
  6. Step 6: Final answer
    x = 1,674,149.40

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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.