Home / 760,514.20-1,140,830.70-339,832.60

Finding the Fourth Proportional to 760,514.20, 1,140,830.70 and 339,832.60

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Solution

The fourth proportional to 760,514.20, 1,140,830.70 and 339,832.60 is: 509,775.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,514.20 : 1,140,830.70 = 339,832.60 : x
  2. Step 2: Convert to fraction form
    760,514.20/1,140,830.70 = 339,832.60/x
  3. Step 3: Cross multiply
    760,514.20x = 1,140,830.70 × 339,832.60
  4. Step 4: Simplify right side
    760,514.20x = 387,691,462,940.82
  5. Step 5: Solve for x
    x = 387,691,462,940.82/760,514.20
  6. Step 6: Final answer
    x = 509,775.44

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1.5x scale

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.