Home / 824,698.80-1,236,328.20-319,604.40

Finding the Fourth Proportional to 824,698.80, 1,236,328.20 and 319,604.40

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Solution

The fourth proportional to 824,698.80, 1,236,328.20 and 319,604.40 is: 479,127.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,698.80 : 1,236,328.20 = 319,604.40 : x
  2. Step 2: Convert to fraction form
    824,698.80/1,236,328.20 = 319,604.40/x
  3. Step 3: Cross multiply
    824,698.80x = 1,236,328.20 × 319,604.40
  4. Step 4: Simplify right side
    824,698.80x = 395,135,932,564.08
  5. Step 5: Solve for x
    x = 395,135,932,564.08/824,698.80
  6. Step 6: Final answer
    x = 479,127.57

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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.