Home / 820,146.40-1,230,219.60-503,576.80

Finding the Fourth Proportional to 820,146.40, 1,230,219.60 and 503,576.80

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Solution

The fourth proportional to 820,146.40, 1,230,219.60 and 503,576.80 is: 755,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,146.40 : 1,230,219.60 = 503,576.80 : x
  2. Step 2: Convert to fraction form
    820,146.40/1,230,219.60 = 503,576.80/x
  3. Step 3: Cross multiply
    820,146.40x = 1,230,219.60 × 503,576.80
  4. Step 4: Simplify right side
    820,146.40x = 619,510,049,465.28
  5. Step 5: Solve for x
    x = 619,510,049,465.28/820,146.40
  6. Step 6: Final answer
    x = 755,365.20

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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.