Home / 1,071,868.23-1,605,700.35-621,643.28

Finding the Fourth Proportional to 1,071,868.23, 1,605,700.35 and 621,643.28

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Solution

The fourth proportional to 1,071,868.23, 1,605,700.35 and 621,643.28 is: 931,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,868.23 : 1,605,700.35 = 621,643.28 : x
  2. Step 2: Convert to fraction form
    1,071,868.23/1,605,700.35 = 621,643.28/x
  3. Step 3: Cross multiply
    1,071,868.23x = 1,605,700.35 × 621,643.28
  4. Step 4: Simplify right side
    1,071,868.23x = 998,172,824,242.65
  5. Step 5: Solve for x
    x = 998,172,824,242.65/1,071,868.23
  6. Step 6: Final answer
    x = 931,245.83

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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.