Home / 1,590,564.78-2,194,913.70-865,415.40

Finding the Fourth Proportional to 1,590,564.78, 2,194,913.70 and 865,415.40

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Solution

The fourth proportional to 1,590,564.78, 2,194,913.70 and 865,415.40 is: 1,194,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,564.78 : 2,194,913.70 = 865,415.40 : x
  2. Step 2: Convert to fraction form
    1,590,564.78/2,194,913.70 = 865,415.40/x
  3. Step 3: Cross multiply
    1,590,564.78x = 2,194,913.70 × 865,415.40
  4. Step 4: Simplify right side
    1,590,564.78x = 1,899,512,117,650.98
  5. Step 5: Solve for x
    x = 1,899,512,117,650.98/1,590,564.78
  6. Step 6: Final answer
    x = 1,194,237.51

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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.