Home / 877,003.20-1,315,504.80-315,964.80

Finding the Fourth Proportional to 877,003.20, 1,315,504.80 and 315,964.80

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Solution

The fourth proportional to 877,003.20, 1,315,504.80 and 315,964.80 is: 473,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,003.20 : 1,315,504.80 = 315,964.80 : x
  2. Step 2: Convert to fraction form
    877,003.20/1,315,504.80 = 315,964.80/x
  3. Step 3: Cross multiply
    877,003.20x = 1,315,504.80 × 315,964.80
  4. Step 4: Simplify right side
    877,003.20x = 415,653,211,031.04
  5. Step 5: Solve for x
    x = 415,653,211,031.04/877,003.20
  6. Step 6: Final answer
    x = 473,947.20

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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.