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Finding the Fourth Proportional to 528,075.88, 727,512.78 and 432,022.84

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Solution

The fourth proportional to 528,075.88, 727,512.78 and 432,022.84 is: 595,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,075.88 : 727,512.78 = 432,022.84 : x
  2. Step 2: Convert to fraction form
    528,075.88/727,512.78 = 432,022.84/x
  3. Step 3: Cross multiply
    528,075.88x = 727,512.78 × 432,022.84
  4. Step 4: Simplify right side
    528,075.88x = 314,302,137,351.90
  5. Step 5: Solve for x
    x = 314,302,137,351.90/528,075.88
  6. Step 6: Final answer
    x = 595,183.66

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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.