Home / 1,905,403.32-2,629,388.54-1,078,459.13

Finding the Fourth Proportional to 1,905,403.32, 2,629,388.54 and 1,078,459.13

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Solution

The fourth proportional to 1,905,403.32, 2,629,388.54 and 1,078,459.13 is: 1,488,235.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,403.32 : 2,629,388.54 = 1,078,459.13 : x
  2. Step 2: Convert to fraction form
    1,905,403.32/2,629,388.54 = 1,078,459.13/x
  3. Step 3: Cross multiply
    1,905,403.32x = 2,629,388.54 × 1,078,459.13
  4. Step 4: Simplify right side
    1,905,403.32x = 2,835,688,077,280.37
  5. Step 5: Solve for x
    x = 2,835,688,077,280.37/1,905,403.32
  6. Step 6: Final answer
    x = 1,488,235.09

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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.