Home / 849,879.20-1,274,818.80-475,853.60

Finding the Fourth Proportional to 849,879.20, 1,274,818.80 and 475,853.60

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Solution

The fourth proportional to 849,879.20, 1,274,818.80 and 475,853.60 is: 713,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,879.20 : 1,274,818.80 = 475,853.60 : x
  2. Step 2: Convert to fraction form
    849,879.20/1,274,818.80 = 475,853.60/x
  3. Step 3: Cross multiply
    849,879.20x = 1,274,818.80 × 475,853.60
  4. Step 4: Simplify right side
    849,879.20x = 606,627,115,327.68
  5. Step 5: Solve for x
    x = 606,627,115,327.68/849,879.20
  6. Step 6: Final answer
    x = 713,780.40

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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.