Home / 712,611.11-1,068,890.74-213,962.15

Finding the Fourth Proportional to 712,611.11, 1,068,890.74 and 213,962.15

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Solution

The fourth proportional to 712,611.11, 1,068,890.74 and 213,962.15 is: 320,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,611.11 : 1,068,890.74 = 213,962.15 : x
  2. Step 2: Convert to fraction form
    712,611.11/1,068,890.74 = 213,962.15/x
  3. Step 3: Cross multiply
    712,611.11x = 1,068,890.74 × 213,962.15
  4. Step 4: Simplify right side
    712,611.11x = 228,702,160,845.49
  5. Step 5: Solve for x
    x = 228,702,160,845.49/712,611.11
  6. Step 6: Final answer
    x = 320,935.44

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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.