Home / 1,211,774.87-1,672,151.00-702,510.05

Finding the Fourth Proportional to 1,211,774.87, 1,672,151.00 and 702,510.05

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Solution

The fourth proportional to 1,211,774.87, 1,672,151.00 and 702,510.05 is: 969,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,774.87 : 1,672,151.00 = 702,510.05 : x
  2. Step 2: Convert to fraction form
    1,211,774.87/1,672,151.00 = 702,510.05/x
  3. Step 3: Cross multiply
    1,211,774.87x = 1,672,151.00 × 702,510.05
  4. Step 4: Simplify right side
    1,211,774.87x = 1,174,702,883,285.38
  5. Step 5: Solve for x
    x = 1,174,702,883,285.38/1,211,774.87
  6. Step 6: Final answer
    x = 969,406.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.