Home / 1,342,120-1,852,138.56-738,520.96

Finding the Fourth Proportional to 1,342,120, 1,852,138.56 and 738,520.96

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Solution

The fourth proportional to 1,342,120, 1,852,138.56 and 738,520.96 is: 1,019,166.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,120 : 1,852,138.56 = 738,520.96 : x
  2. Step 2: Convert to fraction form
    1,342,120/1,852,138.56 = 738,520.96/x
  3. Step 3: Cross multiply
    1,342,120x = 1,852,138.56 × 738,520.96
  4. Step 4: Simplify right side
    1,342,120x = 1,367,843,147,384.22
  5. Step 5: Solve for x
    x = 1,367,843,147,384.22/1,342,120
  6. Step 6: Final answer
    x = 1,019,166.06

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.