Home / 1,865,722.78-2,798,599.86-517,990.48

Finding the Fourth Proportional to 1,865,722.78, 2,798,599.86 and 517,990.48

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Solution

The fourth proportional to 1,865,722.78, 2,798,599.86 and 517,990.48 is: 776,990.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,722.78 : 2,798,599.86 = 517,990.48 : x
  2. Step 2: Convert to fraction form
    1,865,722.78/2,798,599.86 = 517,990.48/x
  3. Step 3: Cross multiply
    1,865,722.78x = 2,798,599.86 × 517,990.48
  4. Step 4: Simplify right side
    1,865,722.78x = 1,449,648,084,809.33
  5. Step 5: Solve for x
    x = 1,449,648,084,809.33/1,865,722.78
  6. Step 6: Final answer
    x = 776,990.08

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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.