Home / 389,896.58-583,514.18-326,788.00

Finding the Fourth Proportional to 389,896.58, 583,514.18 and 326,788.00

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Solution

The fourth proportional to 389,896.58, 583,514.18 and 326,788.00 is: 489,066.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,896.58 : 583,514.18 = 326,788.00 : x
  2. Step 2: Convert to fraction form
    389,896.58/583,514.18 = 326,788.00/x
  3. Step 3: Cross multiply
    389,896.58x = 583,514.18 × 326,788.00
  4. Step 4: Simplify right side
    389,896.58x = 190,685,427,302.33
  5. Step 5: Solve for x
    x = 190,685,427,302.33/389,896.58
  6. Step 6: Final answer
    x = 489,066.68

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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.