Home / 1,905,105.42-2,630,276.65-1,180,721.81

Finding the Fourth Proportional to 1,905,105.42, 2,630,276.65 and 1,180,721.81

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Solution

The fourth proportional to 1,905,105.42, 2,630,276.65 and 1,180,721.81 is: 1,630,159.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,105.42 : 2,630,276.65 = 1,180,721.81 : x
  2. Step 2: Convert to fraction form
    1,905,105.42/2,630,276.65 = 1,180,721.81/x
  3. Step 3: Cross multiply
    1,905,105.42x = 2,630,276.65 × 1,180,721.81
  4. Step 4: Simplify right side
    1,905,105.42x = 3,105,625,015,040.33
  5. Step 5: Solve for x
    x = 3,105,625,015,040.33/1,905,105.42
  6. Step 6: Final answer
    x = 1,630,159.14

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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.