Home / 1,557,630.78-2,149,558.47-913,515.54

Finding the Fourth Proportional to 1,557,630.78, 2,149,558.47 and 913,515.54

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Solution

The fourth proportional to 1,557,630.78, 2,149,558.47 and 913,515.54 is: 1,260,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,630.78 : 2,149,558.47 = 913,515.54 : x
  2. Step 2: Convert to fraction form
    1,557,630.78/2,149,558.47 = 913,515.54/x
  3. Step 3: Cross multiply
    1,557,630.78x = 2,149,558.47 × 913,515.54
  4. Step 4: Simplify right side
    1,557,630.78x = 1,963,655,066,483.62
  5. Step 5: Solve for x
    x = 1,963,655,066,483.62/1,557,630.78
  6. Step 6: Final answer
    x = 1,260,667.86

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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.