Home / 1,221,314.16-1,684,213.44-1,124,768.64

Finding the Fourth Proportional to 1,221,314.16, 1,684,213.44 and 1,124,768.64

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Solution

The fourth proportional to 1,221,314.16, 1,684,213.44 and 1,124,768.64 is: 1,551,075.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,314.16 : 1,684,213.44 = 1,124,768.64 : x
  2. Step 2: Convert to fraction form
    1,221,314.16/1,684,213.44 = 1,124,768.64/x
  3. Step 3: Cross multiply
    1,221,314.16x = 1,684,213.44 × 1,124,768.64
  4. Step 4: Simplify right side
    1,221,314.16x = 1,894,350,460,378.52
  5. Step 5: Solve for x
    x = 1,894,350,460,378.52/1,221,314.16
  6. Step 6: Final answer
    x = 1,551,075.49

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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.