Home / 2,178,421.93-3,006,260.88-1,211,552.60

Finding the Fourth Proportional to 2,178,421.93, 3,006,260.88 and 1,211,552.60

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Solution

The fourth proportional to 2,178,421.93, 3,006,260.88 and 1,211,552.60 is: 1,671,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,421.93 : 3,006,260.88 = 1,211,552.60 : x
  2. Step 2: Convert to fraction form
    2,178,421.93/3,006,260.88 = 1,211,552.60/x
  3. Step 3: Cross multiply
    2,178,421.93x = 3,006,260.88 × 1,211,552.60
  4. Step 4: Simplify right side
    2,178,421.93x = 3,642,243,185,442.29
  5. Step 5: Solve for x
    x = 3,642,243,185,442.29/2,178,421.93
  6. Step 6: Final answer
    x = 1,671,964.07

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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.