Home / 460,136.82-634,891.20-290,272.50

Finding the Fourth Proportional to 460,136.82, 634,891.20 and 290,272.50

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Solution

The fourth proportional to 460,136.82, 634,891.20 and 290,272.50 is: 400,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,136.82 : 634,891.20 = 290,272.50 : x
  2. Step 2: Convert to fraction form
    460,136.82/634,891.20 = 290,272.50/x
  3. Step 3: Cross multiply
    460,136.82x = 634,891.20 × 290,272.50
  4. Step 4: Simplify right side
    460,136.82x = 184,291,455,852
  5. Step 5: Solve for x
    x = 184,291,455,852/460,136.82
  6. Step 6: Final answer
    x = 400,514.47

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1.5x scale

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.