Home / 679,204.80-1,018,807.20-205,866.72

Finding the Fourth Proportional to 679,204.80, 1,018,807.20 and 205,866.72

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Solution

The fourth proportional to 679,204.80, 1,018,807.20 and 205,866.72 is: 308,800.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,204.80 : 1,018,807.20 = 205,866.72 : x
  2. Step 2: Convert to fraction form
    679,204.80/1,018,807.20 = 205,866.72/x
  3. Step 3: Cross multiply
    679,204.80x = 1,018,807.20 × 205,866.72
  4. Step 4: Simplify right side
    679,204.80x = 209,738,496,576.38
  5. Step 5: Solve for x
    x = 209,738,496,576.38/679,204.80
  6. Step 6: Final answer
    x = 308,800.08

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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.