Home / 876,703.20-1,315,054.80-315,664.80

Finding the Fourth Proportional to 876,703.20, 1,315,054.80 and 315,664.80

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Solution

The fourth proportional to 876,703.20, 1,315,054.80 and 315,664.80 is: 473,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,703.20 : 1,315,054.80 = 315,664.80 : x
  2. Step 2: Convert to fraction form
    876,703.20/1,315,054.80 = 315,664.80/x
  3. Step 3: Cross multiply
    876,703.20x = 1,315,054.80 × 315,664.80
  4. Step 4: Simplify right side
    876,703.20x = 415,116,510,431.04
  5. Step 5: Solve for x
    x = 415,116,510,431.04/876,703.20
  6. Step 6: Final answer
    x = 473,497.20

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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.