Home / 1,111,143.06-1,533,355.29-621,110.16

Finding the Fourth Proportional to 1,111,143.06, 1,533,355.29 and 621,110.16

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Solution

The fourth proportional to 1,111,143.06, 1,533,355.29 and 621,110.16 is: 857,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,143.06 : 1,533,355.29 = 621,110.16 : x
  2. Step 2: Convert to fraction form
    1,111,143.06/1,533,355.29 = 621,110.16/x
  3. Step 3: Cross multiply
    1,111,143.06x = 1,533,355.29 × 621,110.16
  4. Step 4: Simplify right side
    1,111,143.06x = 952,382,549,508.75
  5. Step 5: Solve for x
    x = 952,382,549,508.75/1,111,143.06
  6. Step 6: Final answer
    x = 857,119.65

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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.