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Finding the Fourth Proportional to 1,400,584, 2,100,878.56 and 349,960

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Solution

The fourth proportional to 1,400,584, 2,100,878.56 and 349,960 is: 524,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,584 : 2,100,878.56 = 349,960 : x
  2. Step 2: Convert to fraction form
    1,400,584/2,100,878.56 = 349,960/x
  3. Step 3: Cross multiply
    1,400,584x = 2,100,878.56 × 349,960
  4. Step 4: Simplify right side
    1,400,584x = 735,223,460,857.60
  5. Step 5: Solve for x
    x = 735,223,460,857.60/1,400,584
  6. Step 6: Final answer
    x = 524,940.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.