Home / 1,018,976.05-1,405,828.29-611,209.90

Finding the Fourth Proportional to 1,018,976.05, 1,405,828.29 and 611,209.90

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Solution

The fourth proportional to 1,018,976.05, 1,405,828.29 and 611,209.90 is: 843,254.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,976.05 : 1,405,828.29 = 611,209.90 : x
  2. Step 2: Convert to fraction form
    1,018,976.05/1,405,828.29 = 611,209.90/x
  3. Step 3: Cross multiply
    1,018,976.05x = 1,405,828.29 × 611,209.90
  4. Step 4: Simplify right side
    1,018,976.05x = 859,256,168,548.07
  5. Step 5: Solve for x
    x = 859,256,168,548.07/1,018,976.05
  6. Step 6: Final answer
    x = 843,254.53

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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.