Home / 487,857.12-673,263.68-301,629.21

Finding the Fourth Proportional to 487,857.12, 673,263.68 and 301,629.21

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Solution

The fourth proportional to 487,857.12, 673,263.68 and 301,629.21 is: 416,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,857.12 : 673,263.68 = 301,629.21 : x
  2. Step 2: Convert to fraction form
    487,857.12/673,263.68 = 301,629.21/x
  3. Step 3: Cross multiply
    487,857.12x = 673,263.68 × 301,629.21
  4. Step 4: Simplify right side
    487,857.12x = 203,075,990,411.95
  5. Step 5: Solve for x
    x = 203,075,990,411.95/487,857.12
  6. Step 6: Final answer
    x = 416,261.20

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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.