Home / 866,004.90-1,299,007.35-266,912.70

Finding the Fourth Proportional to 866,004.90, 1,299,007.35 and 266,912.70

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Solution

The fourth proportional to 866,004.90, 1,299,007.35 and 266,912.70 is: 400,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,004.90 : 1,299,007.35 = 266,912.70 : x
  2. Step 2: Convert to fraction form
    866,004.90/1,299,007.35 = 266,912.70/x
  3. Step 3: Cross multiply
    866,004.90x = 1,299,007.35 × 266,912.70
  4. Step 4: Simplify right side
    866,004.90x = 346,721,559,108.35
  5. Step 5: Solve for x
    x = 346,721,559,108.35/866,004.90
  6. Step 6: Final answer
    x = 400,369.05

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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.