Home / 760,811.82-1,049,907.48-421,272.78

Finding the Fourth Proportional to 760,811.82, 1,049,907.48 and 421,272.78

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Solution

The fourth proportional to 760,811.82, 1,049,907.48 and 421,272.78 is: 581,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,811.82 : 1,049,907.48 = 421,272.78 : x
  2. Step 2: Convert to fraction form
    760,811.82/1,049,907.48 = 421,272.78/x
  3. Step 3: Cross multiply
    760,811.82x = 1,049,907.48 × 421,272.78
  4. Step 4: Simplify right side
    760,811.82x = 442,297,442,842.39
  5. Step 5: Solve for x
    x = 442,297,442,842.39/760,811.82
  6. Step 6: Final answer
    x = 581,349.33

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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.