Home / 1,645,029.57-2,270,148.21-919,877.55

Finding the Fourth Proportional to 1,645,029.57, 2,270,148.21 and 919,877.55

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Solution

The fourth proportional to 1,645,029.57, 2,270,148.21 and 919,877.55 is: 1,269,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,029.57 : 2,270,148.21 = 919,877.55 : x
  2. Step 2: Convert to fraction form
    1,645,029.57/2,270,148.21 = 919,877.55/x
  3. Step 3: Cross multiply
    1,645,029.57x = 2,270,148.21 × 919,877.55
  4. Step 4: Simplify right side
    1,645,029.57x = 2,088,258,373,551.69
  5. Step 5: Solve for x
    x = 2,088,258,373,551.69/1,645,029.57
  6. Step 6: Final answer
    x = 1,269,435.16

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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.