Home / 920,119.66-1,379,060.40-492,604.90

Finding the Fourth Proportional to 920,119.66, 1,379,060.40 and 492,604.90

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Solution

The fourth proportional to 920,119.66, 1,379,060.40 and 492,604.90 is: 738,308.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,119.66 : 1,379,060.40 = 492,604.90 : x
  2. Step 2: Convert to fraction form
    920,119.66/1,379,060.40 = 492,604.90/x
  3. Step 3: Cross multiply
    920,119.66x = 1,379,060.40 × 492,604.90
  4. Step 4: Simplify right side
    920,119.66x = 679,331,908,835.58
  5. Step 5: Solve for x
    x = 679,331,908,835.58/920,119.66
  6. Step 6: Final answer
    x = 738,308.22

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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.