Home / 806,852.80-1,210,279.20-245,814.40

Finding the Fourth Proportional to 806,852.80, 1,210,279.20 and 245,814.40

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Solution

The fourth proportional to 806,852.80, 1,210,279.20 and 245,814.40 is: 368,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,852.80 : 1,210,279.20 = 245,814.40 : x
  2. Step 2: Convert to fraction form
    806,852.80/1,210,279.20 = 245,814.40/x
  3. Step 3: Cross multiply
    806,852.80x = 1,210,279.20 × 245,814.40
  4. Step 4: Simplify right side
    806,852.80x = 297,504,055,380.48
  5. Step 5: Solve for x
    x = 297,504,055,380.48/806,852.80
  6. Step 6: Final answer
    x = 368,721.60

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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.