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Finding the Fourth Proportional to 422,075.52, 632,664.48 and 288,918.24

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Solution

The fourth proportional to 422,075.52, 632,664.48 and 288,918.24 is: 433,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,075.52 : 632,664.48 = 288,918.24 : x
  2. Step 2: Convert to fraction form
    422,075.52/632,664.48 = 288,918.24/x
  3. Step 3: Cross multiply
    422,075.52x = 632,664.48 × 288,918.24
  4. Step 4: Simplify right side
    422,075.52x = 182,788,308,072.12
  5. Step 5: Solve for x
    x = 182,788,308,072.12/422,075.52
  6. Step 6: Final answer
    x = 433,070.15

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1.5x scale

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.