Home / 1,229,079.80-1,843,619.70-342,615.80

Finding the Fourth Proportional to 1,229,079.80, 1,843,619.70 and 342,615.80

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Solution

The fourth proportional to 1,229,079.80, 1,843,619.70 and 342,615.80 is: 513,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,079.80 : 1,843,619.70 = 342,615.80 : x
  2. Step 2: Convert to fraction form
    1,229,079.80/1,843,619.70 = 342,615.80/x
  3. Step 3: Cross multiply
    1,229,079.80x = 1,843,619.70 × 342,615.80
  4. Step 4: Simplify right side
    1,229,079.80x = 631,653,238,411.26
  5. Step 5: Solve for x
    x = 631,653,238,411.26/1,229,079.80
  6. Step 6: Final answer
    x = 513,923.70

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Double scale
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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.