Home / 1,865,721.54-2,798,782.32-517,889.84

Finding the Fourth Proportional to 1,865,721.54, 2,798,782.32 and 517,889.84

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Solution

The fourth proportional to 1,865,721.54, 2,798,782.32 and 517,889.84 is: 776,890.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,721.54 : 2,798,782.32 = 517,889.84 : x
  2. Step 2: Convert to fraction form
    1,865,721.54/2,798,782.32 = 517,889.84/x
  3. Step 3: Cross multiply
    1,865,721.54x = 2,798,782.32 × 517,889.84
  4. Step 4: Simplify right side
    1,865,721.54x = 1,449,460,913,905.72
  5. Step 5: Solve for x
    x = 1,449,460,913,905.72/1,865,721.54
  6. Step 6: Final answer
    x = 776,890.27

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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.