Home / 2,129,321-2,938,436.16-1,211,547.26

Finding the Fourth Proportional to 2,129,321, 2,938,436.16 and 1,211,547.26

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Solution

The fourth proportional to 2,129,321, 2,938,436.16 and 1,211,547.26 is: 1,671,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,321 : 2,938,436.16 = 1,211,547.26 : x
  2. Step 2: Convert to fraction form
    2,129,321/2,938,436.16 = 1,211,547.26/x
  3. Step 3: Cross multiply
    2,129,321x = 2,938,436.16 × 1,211,547.26
  4. Step 4: Simplify right side
    2,129,321x = 3,560,054,278,332.92
  5. Step 5: Solve for x
    x = 3,560,054,278,332.92/2,129,321
  6. Step 6: Final answer
    x = 1,671,919.96

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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.