Home / 689,326.44-1,033,990.02-315,087

Finding the Fourth Proportional to 689,326.44, 1,033,990.02 and 315,087

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Solution

The fourth proportional to 689,326.44, 1,033,990.02 and 315,087 is: 472,630.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,326.44 : 1,033,990.02 = 315,087 : x
  2. Step 2: Convert to fraction form
    689,326.44/1,033,990.02 = 315,087/x
  3. Step 3: Cross multiply
    689,326.44x = 1,033,990.02 × 315,087
  4. Step 4: Simplify right side
    689,326.44x = 325,796,813,431.74
  5. Step 5: Solve for x
    x = 325,796,813,431.74/689,326.44
  6. Step 6: Final answer
    x = 472,630.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.