Home / 1,390,603.70-2,085,905.55-548,722.10

Finding the Fourth Proportional to 1,390,603.70, 2,085,905.55 and 548,722.10

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Solution

The fourth proportional to 1,390,603.70, 2,085,905.55 and 548,722.10 is: 823,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,603.70 : 2,085,905.55 = 548,722.10 : x
  2. Step 2: Convert to fraction form
    1,390,603.70/2,085,905.55 = 548,722.10/x
  3. Step 3: Cross multiply
    1,390,603.70x = 2,085,905.55 × 548,722.10
  4. Step 4: Simplify right side
    1,390,603.70x = 1,144,582,473,797.66
  5. Step 5: Solve for x
    x = 1,144,582,473,797.66/1,390,603.70
  6. Step 6: Final answer
    x = 823,083.15

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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.