Home / 679,031.40-1,018,652.76-205,604.04

Finding the Fourth Proportional to 679,031.40, 1,018,652.76 and 205,604.04

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Solution

The fourth proportional to 679,031.40, 1,018,652.76 and 205,604.04 is: 308,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,031.40 : 1,018,652.76 = 205,604.04 : x
  2. Step 2: Convert to fraction form
    679,031.40/1,018,652.76 = 205,604.04/x
  3. Step 3: Cross multiply
    679,031.40x = 1,018,652.76 × 205,604.04
  4. Step 4: Simplify right side
    679,031.40x = 209,439,122,813.15
  5. Step 5: Solve for x
    x = 209,439,122,813.15/679,031.40
  6. Step 6: Final answer
    x = 308,438.05

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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.