Home / 486,285.12-671,185.44-285,145.92

Finding the Fourth Proportional to 486,285.12, 671,185.44 and 285,145.92

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Solution

The fourth proportional to 486,285.12, 671,185.44 and 285,145.92 is: 393,567.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,285.12 : 671,185.44 = 285,145.92 : x
  2. Step 2: Convert to fraction form
    486,285.12/671,185.44 = 285,145.92/x
  3. Step 3: Cross multiply
    486,285.12x = 671,185.44 × 285,145.92
  4. Step 4: Simplify right side
    486,285.12x = 191,385,789,779.41
  5. Step 5: Solve for x
    x = 191,385,789,779.41/486,285.12
  6. Step 6: Final answer
    x = 393,567.03

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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.