Home / 760,185.44-1,049,077.68-420,685.28

Finding the Fourth Proportional to 760,185.44, 1,049,077.68 and 420,685.28

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Solution

The fourth proportional to 760,185.44, 1,049,077.68 and 420,685.28 is: 580,557.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,185.44 : 1,049,077.68 = 420,685.28 : x
  2. Step 2: Convert to fraction form
    760,185.44/1,049,077.68 = 420,685.28/x
  3. Step 3: Cross multiply
    760,185.44x = 1,049,077.68 × 420,685.28
  4. Step 4: Simplify right side
    760,185.44x = 441,331,537,552.55
  5. Step 5: Solve for x
    x = 441,331,537,552.55/760,185.44
  6. Step 6: Final answer
    x = 580,557.74

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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.