Home / 893,642.11-1,339,709.81-387,822.07

Finding the Fourth Proportional to 893,642.11, 1,339,709.81 and 387,822.07

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Solution

The fourth proportional to 893,642.11, 1,339,709.81 and 387,822.07 is: 581,406.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,642.11 : 1,339,709.81 = 387,822.07 : x
  2. Step 2: Convert to fraction form
    893,642.11/1,339,709.81 = 387,822.07/x
  3. Step 3: Cross multiply
    893,642.11x = 1,339,709.81 × 387,822.07
  4. Step 4: Simplify right side
    893,642.11x = 519,569,029,774.40
  5. Step 5: Solve for x
    x = 519,569,029,774.40/893,642.11
  6. Step 6: Final answer
    x = 581,406.16

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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.