Home / 760,429.20-1,049,282.46-420,896.64

Finding the Fourth Proportional to 760,429.20, 1,049,282.46 and 420,896.64

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Solution

The fourth proportional to 760,429.20, 1,049,282.46 and 420,896.64 is: 580,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,429.20 : 1,049,282.46 = 420,896.64 : x
  2. Step 2: Convert to fraction form
    760,429.20/1,049,282.46 = 420,896.64/x
  3. Step 3: Cross multiply
    760,429.20x = 1,049,282.46 × 420,896.64
  4. Step 4: Simplify right side
    760,429.20x = 441,639,461,824.93
  5. Step 5: Solve for x
    x = 441,639,461,824.93/760,429.20
  6. Step 6: Final answer
    x = 580,776.57

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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.