Home / 1,581,065.51-2,181,852.32-855,897.35

Finding the Fourth Proportional to 1,581,065.51, 2,181,852.32 and 855,897.35

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Solution

The fourth proportional to 1,581,065.51, 2,181,852.32 and 855,897.35 is: 1,181,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,065.51 : 2,181,852.32 = 855,897.35 : x
  2. Step 2: Convert to fraction form
    1,581,065.51/2,181,852.32 = 855,897.35/x
  3. Step 3: Cross multiply
    1,581,065.51x = 2,181,852.32 × 855,897.35
  4. Step 4: Simplify right side
    1,581,065.51x = 1,867,441,603,590.60
  5. Step 5: Solve for x
    x = 1,867,441,603,590.60/1,581,065.51
  6. Step 6: Final answer
    x = 1,181,128.55

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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.