Home / 760,719.25-1,049,825.37-421,187.50

Finding the Fourth Proportional to 760,719.25, 1,049,825.37 and 421,187.50

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Solution

The fourth proportional to 760,719.25, 1,049,825.37 and 421,187.50 is: 581,256.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,719.25 : 1,049,825.37 = 421,187.50 : x
  2. Step 2: Convert to fraction form
    760,719.25/1,049,825.37 = 421,187.50/x
  3. Step 3: Cross multiply
    760,719.25x = 1,049,825.37 × 421,187.50
  4. Step 4: Simplify right side
    760,719.25x = 442,173,323,026.88
  5. Step 5: Solve for x
    x = 442,173,323,026.88/760,719.25
  6. Step 6: Final answer
    x = 581,256.91

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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.