Home / 1,557,505.78-2,148,951.81-912,579.46

Finding the Fourth Proportional to 1,557,505.78, 2,148,951.81 and 912,579.46

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Solution

The fourth proportional to 1,557,505.78, 2,148,951.81 and 912,579.46 is: 1,259,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,505.78 : 2,148,951.81 = 912,579.46 : x
  2. Step 2: Convert to fraction form
    1,557,505.78/2,148,951.81 = 912,579.46/x
  3. Step 3: Cross multiply
    1,557,505.78x = 2,148,951.81 × 912,579.46
  4. Step 4: Simplify right side
    1,557,505.78x = 1,961,089,282,335.82
  5. Step 5: Solve for x
    x = 1,961,089,282,335.82/1,557,505.78
  6. Step 6: Final answer
    x = 1,259,121.67

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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.