Home / 1,105,290-1,525,300.20-628,362

Finding the Fourth Proportional to 1,105,290, 1,525,300.20 and 628,362

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Solution

The fourth proportional to 1,105,290, 1,525,300.20 and 628,362 is: 867,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,290 : 1,525,300.20 = 628,362 : x
  2. Step 2: Convert to fraction form
    1,105,290/1,525,300.20 = 628,362/x
  3. Step 3: Cross multiply
    1,105,290x = 1,525,300.20 × 628,362
  4. Step 4: Simplify right side
    1,105,290x = 958,440,684,272.40
  5. Step 5: Solve for x
    x = 958,440,684,272.40/1,105,290
  6. Step 6: Final answer
    x = 867,139.56

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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.