Home / 1,289,397.51-1,934,446.23-390,868.56

Finding the Fourth Proportional to 1,289,397.51, 1,934,446.23 and 390,868.56

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Solution

The fourth proportional to 1,289,397.51, 1,934,446.23 and 390,868.56 is: 586,408.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,397.51 : 1,934,446.23 = 390,868.56 : x
  2. Step 2: Convert to fraction form
    1,289,397.51/1,934,446.23 = 390,868.56/x
  3. Step 3: Cross multiply
    1,289,397.51x = 1,934,446.23 × 390,868.56
  4. Step 4: Simplify right side
    1,289,397.51x = 756,114,212,317.53
  5. Step 5: Solve for x
    x = 756,114,212,317.53/1,289,397.51
  6. Step 6: Final answer
    x = 586,408.93

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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.