Home / 325,618.20-487,779.30-286,651.80

Finding the Fourth Proportional to 325,618.20, 487,779.30 and 286,651.80

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Solution

The fourth proportional to 325,618.20, 487,779.30 and 286,651.80 is: 429,407.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,618.20 : 487,779.30 = 286,651.80 : x
  2. Step 2: Convert to fraction form
    325,618.20/487,779.30 = 286,651.80/x
  3. Step 3: Cross multiply
    325,618.20x = 487,779.30 × 286,651.80
  4. Step 4: Simplify right side
    325,618.20x = 139,822,814,347.74
  5. Step 5: Solve for x
    x = 139,822,814,347.74/325,618.20
  6. Step 6: Final answer
    x = 429,407.25

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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.