Home / 1,257,409.76-1,886,115.24-415,961.51

Finding the Fourth Proportional to 1,257,409.76, 1,886,115.24 and 415,961.51

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Solution

The fourth proportional to 1,257,409.76, 1,886,115.24 and 415,961.51 is: 623,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,409.76 : 1,886,115.24 = 415,961.51 : x
  2. Step 2: Convert to fraction form
    1,257,409.76/1,886,115.24 = 415,961.51/x
  3. Step 3: Cross multiply
    1,257,409.76x = 1,886,115.24 × 415,961.51
  4. Step 4: Simplify right side
    1,257,409.76x = 784,551,343,264.41
  5. Step 5: Solve for x
    x = 784,551,343,264.41/1,257,409.76
  6. Step 6: Final answer
    x = 623,942.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.