Home / 1,528,612.75-2,111,643.98-1,224,707.23

Finding the Fourth Proportional to 1,528,612.75, 2,111,643.98 and 1,224,707.23

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Solution

The fourth proportional to 1,528,612.75, 2,111,643.98 and 1,224,707.23 is: 1,691,825.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,612.75 : 2,111,643.98 = 1,224,707.23 : x
  2. Step 2: Convert to fraction form
    1,528,612.75/2,111,643.98 = 1,224,707.23/x
  3. Step 3: Cross multiply
    1,528,612.75x = 2,111,643.98 × 1,224,707.23
  4. Step 4: Simplify right side
    1,528,612.75x = 2,586,145,649,491.98
  5. Step 5: Solve for x
    x = 2,586,145,649,491.98/1,528,612.75
  6. Step 6: Final answer
    x = 1,691,825.25

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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.