Home / 1,639,705.78-2,262,783.06-904,697.91

Finding the Fourth Proportional to 1,639,705.78, 2,262,783.06 and 904,697.91

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Solution

The fourth proportional to 1,639,705.78, 2,262,783.06 and 904,697.91 is: 1,248,477.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,705.78 : 2,262,783.06 = 904,697.91 : x
  2. Step 2: Convert to fraction form
    1,639,705.78/2,262,783.06 = 904,697.91/x
  3. Step 3: Cross multiply
    1,639,705.78x = 2,262,783.06 × 904,697.91
  4. Step 4: Simplify right side
    1,639,705.78x = 2,047,135,105,165.40
  5. Step 5: Solve for x
    x = 2,047,135,105,165.40/1,639,705.78
  6. Step 6: Final answer
    x = 1,248,477.09

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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.