Home / 879,682.72-1,319,436.58-406,361.24

Finding the Fourth Proportional to 879,682.72, 1,319,436.58 and 406,361.24

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Solution

The fourth proportional to 879,682.72, 1,319,436.58 and 406,361.24 is: 609,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,682.72 : 1,319,436.58 = 406,361.24 : x
  2. Step 2: Convert to fraction form
    879,682.72/1,319,436.58 = 406,361.24/x
  3. Step 3: Cross multiply
    879,682.72x = 1,319,436.58 × 406,361.24
  4. Step 4: Simplify right side
    879,682.72x = 536,167,884,750.16
  5. Step 5: Solve for x
    x = 536,167,884,750.16/879,682.72
  6. Step 6: Final answer
    x = 609,501.44

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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.