Home / 855,648.14-1,180,448.36-492,877.69

Finding the Fourth Proportional to 855,648.14, 1,180,448.36 and 492,877.69

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Solution

The fourth proportional to 855,648.14, 1,180,448.36 and 492,877.69 is: 679,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,648.14 : 1,180,448.36 = 492,877.69 : x
  2. Step 2: Convert to fraction form
    855,648.14/1,180,448.36 = 492,877.69/x
  3. Step 3: Cross multiply
    855,648.14x = 1,180,448.36 × 492,877.69
  4. Step 4: Simplify right side
    855,648.14x = 581,816,660,841.09
  5. Step 5: Solve for x
    x = 581,816,660,841.09/855,648.14
  6. Step 6: Final answer
    x = 679,971.86

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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.