Home / 2,890,883.79-3,989,285.24-1,584,128.07

Finding the Fourth Proportional to 2,890,883.79, 3,989,285.24 and 1,584,128.07

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Solution

The fourth proportional to 2,890,883.79, 3,989,285.24 and 1,584,128.07 is: 2,186,023.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,883.79 : 3,989,285.24 = 1,584,128.07 : x
  2. Step 2: Convert to fraction form
    2,890,883.79/3,989,285.24 = 1,584,128.07/x
  3. Step 3: Cross multiply
    2,890,883.79x = 3,989,285.24 × 1,584,128.07
  4. Step 4: Simplify right side
    2,890,883.79x = 6,319,538,720,000.05
  5. Step 5: Solve for x
    x = 6,319,538,720,000.05/2,890,883.79
  6. Step 6: Final answer
    x = 2,186,023.09

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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.