Home / 401,679.04-601,878.96-212,132.32

Finding the Fourth Proportional to 401,679.04, 601,878.96 and 212,132.32

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Solution

The fourth proportional to 401,679.04, 601,878.96 and 212,132.32 is: 317,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,679.04 : 601,878.96 = 212,132.32 : x
  2. Step 2: Convert to fraction form
    401,679.04/601,878.96 = 212,132.32/x
  3. Step 3: Cross multiply
    401,679.04x = 601,878.96 × 212,132.32
  4. Step 4: Simplify right side
    401,679.04x = 127,677,980,143.99
  5. Step 5: Solve for x
    x = 127,677,980,143.99/401,679.04
  6. Step 6: Final answer
    x = 317,860.70

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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.