Home / 869,187.40-1,301,156.70-764,211.40

Finding the Fourth Proportional to 869,187.40, 1,301,156.70 and 764,211.40

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Solution

The fourth proportional to 869,187.40, 1,301,156.70 and 764,211.40 is: 1,144,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,187.40 : 1,301,156.70 = 764,211.40 : x
  2. Step 2: Convert to fraction form
    869,187.40/1,301,156.70 = 764,211.40/x
  3. Step 3: Cross multiply
    869,187.40x = 1,301,156.70 × 764,211.40
  4. Step 4: Simplify right side
    869,187.40x = 994,358,783,326.38
  5. Step 5: Solve for x
    x = 994,358,783,326.38/869,187.40
  6. Step 6: Final answer
    x = 1,144,009.66

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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.