Home / 1,288,099.40-1,934,222.70-972,912.20

Finding the Fourth Proportional to 1,288,099.40, 1,934,222.70 and 972,912.20

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Solution

The fourth proportional to 1,288,099.40, 1,934,222.70 and 972,912.20 is: 1,460,934.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,099.40 : 1,934,222.70 = 972,912.20 : x
  2. Step 2: Convert to fraction form
    1,288,099.40/1,934,222.70 = 972,912.20/x
  3. Step 3: Cross multiply
    1,288,099.40x = 1,934,222.70 × 972,912.20
  4. Step 4: Simplify right side
    1,288,099.40x = 1,881,828,862,346.94
  5. Step 5: Solve for x
    x = 1,881,828,862,346.94/1,288,099.40
  6. Step 6: Final answer
    x = 1,460,934.51

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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.