Home / 804,853.80-1,207,280.70-213,877.80

Finding the Fourth Proportional to 804,853.80, 1,207,280.70 and 213,877.80

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Solution

The fourth proportional to 804,853.80, 1,207,280.70 and 213,877.80 is: 320,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,853.80 : 1,207,280.70 = 213,877.80 : x
  2. Step 2: Convert to fraction form
    804,853.80/1,207,280.70 = 213,877.80/x
  3. Step 3: Cross multiply
    804,853.80x = 1,207,280.70 × 213,877.80
  4. Step 4: Simplify right side
    804,853.80x = 258,210,540,098.46
  5. Step 5: Solve for x
    x = 258,210,540,098.46/804,853.80
  6. Step 6: Final answer
    x = 320,816.70

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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.