Home / 1,790,790-2,686,476.78-528,745.20

Finding the Fourth Proportional to 1,790,790, 2,686,476.78 and 528,745.20

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Solution

The fourth proportional to 1,790,790, 2,686,476.78 and 528,745.20 is: 793,203.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790,790 : 2,686,476.78 = 528,745.20 : x
  2. Step 2: Convert to fraction form
    1,790,790/2,686,476.78 = 528,745.20/x
  3. Step 3: Cross multiply
    1,790,790x = 2,686,476.78 × 528,745.20
  4. Step 4: Simplify right side
    1,790,790x = 1,420,461,702,336.46
  5. Step 5: Solve for x
    x = 1,420,461,702,336.46/1,790,790
  6. Step 6: Final answer
    x = 793,203.95

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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.