Home / 783,426.40-1,175,139.60-192,450.40

Finding the Fourth Proportional to 783,426.40, 1,175,139.60 and 192,450.40

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Solution

The fourth proportional to 783,426.40, 1,175,139.60 and 192,450.40 is: 288,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,426.40 : 1,175,139.60 = 192,450.40 : x
  2. Step 2: Convert to fraction form
    783,426.40/1,175,139.60 = 192,450.40/x
  3. Step 3: Cross multiply
    783,426.40x = 1,175,139.60 × 192,450.40
  4. Step 4: Simplify right side
    783,426.40x = 226,156,086,075.84
  5. Step 5: Solve for x
    x = 226,156,086,075.84/783,426.40
  6. Step 6: Final answer
    x = 288,675.60

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Double scale
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Similar ratio
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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.