Home / 712,620.80-1,068,940.16-213,955.84

Finding the Fourth Proportional to 712,620.80, 1,068,940.16 and 213,955.84

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Solution

The fourth proportional to 712,620.80, 1,068,940.16 and 213,955.84 is: 320,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,620.80 : 1,068,940.16 = 213,955.84 : x
  2. Step 2: Convert to fraction form
    712,620.80/1,068,940.16 = 213,955.84/x
  3. Step 3: Cross multiply
    712,620.80x = 1,068,940.16 × 213,955.84
  4. Step 4: Simplify right side
    712,620.80x = 228,705,989,842.53
  5. Step 5: Solve for x
    x = 228,705,989,842.53/712,620.80
  6. Step 6: Final answer
    x = 320,936.45

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1.5x scale

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.