Home / 667,646.34-1,001,554.39-212,075.05

Finding the Fourth Proportional to 667,646.34, 1,001,554.39 and 212,075.05

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Solution

The fourth proportional to 667,646.34, 1,001,554.39 and 212,075.05 is: 318,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,646.34 : 1,001,554.39 = 212,075.05 : x
  2. Step 2: Convert to fraction form
    667,646.34/1,001,554.39 = 212,075.05/x
  3. Step 3: Cross multiply
    667,646.34x = 1,001,554.39 × 212,075.05
  4. Step 4: Simplify right side
    667,646.34x = 212,404,694,822.10
  5. Step 5: Solve for x
    x = 212,404,694,822.10/667,646.34
  6. Step 6: Final answer
    x = 318,139.53

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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.