Home / 760,734.36-1,049,846.22-421,202.64

Finding the Fourth Proportional to 760,734.36, 1,049,846.22 and 421,202.64

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Solution

The fourth proportional to 760,734.36, 1,049,846.22 and 421,202.64 is: 581,277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,734.36 : 1,049,846.22 = 421,202.64 : x
  2. Step 2: Convert to fraction form
    760,734.36/1,049,846.22 = 421,202.64/x
  3. Step 3: Cross multiply
    760,734.36x = 1,049,846.22 × 421,202.64
  4. Step 4: Simplify right side
    760,734.36x = 442,197,999,458.02
  5. Step 5: Solve for x
    x = 442,197,999,458.02/760,734.36
  6. Step 6: Final answer
    x = 581,277.81

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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.