Home / 669,777.80-1,004,777.40-310,307.90

Finding the Fourth Proportional to 669,777.80, 1,004,777.40 and 310,307.90

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Solution

The fourth proportional to 669,777.80, 1,004,777.40 and 310,307.90 is: 465,513.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,777.80 : 1,004,777.40 = 310,307.90 : x
  2. Step 2: Convert to fraction form
    669,777.80/1,004,777.40 = 310,307.90/x
  3. Step 3: Cross multiply
    669,777.80x = 1,004,777.40 × 310,307.90
  4. Step 4: Simplify right side
    669,777.80x = 311,790,364,961.46
  5. Step 5: Solve for x
    x = 311,790,364,961.46/669,777.80
  6. Step 6: Final answer
    x = 465,513.14

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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.