Home / 804,948.80-1,207,423.20-213,972.80

Finding the Fourth Proportional to 804,948.80, 1,207,423.20 and 213,972.80

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Solution

The fourth proportional to 804,948.80, 1,207,423.20 and 213,972.80 is: 320,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,948.80 : 1,207,423.20 = 213,972.80 : x
  2. Step 2: Convert to fraction form
    804,948.80/1,207,423.20 = 213,972.80/x
  3. Step 3: Cross multiply
    804,948.80x = 1,207,423.20 × 213,972.80
  4. Step 4: Simplify right side
    804,948.80x = 258,355,722,888.96
  5. Step 5: Solve for x
    x = 258,355,722,888.96/804,948.80
  6. Step 6: Final answer
    x = 320,959.20

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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.