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Finding the Fourth Proportional to 525,429.75, 725,093.88 and 299,075.25

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Solution

The fourth proportional to 525,429.75, 725,093.88 and 299,075.25 is: 412,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,429.75 : 725,093.88 = 299,075.25 : x
  2. Step 2: Convert to fraction form
    525,429.75/725,093.88 = 299,075.25/x
  3. Step 3: Cross multiply
    525,429.75x = 725,093.88 × 299,075.25
  4. Step 4: Simplify right side
    525,429.75x = 216,857,633,434.47
  5. Step 5: Solve for x
    x = 216,857,633,434.47/525,429.75
  6. Step 6: Final answer
    x = 412,724.31

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1.5x scale

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.