Home / 558,382.89-837,667.75-438,435

Finding the Fourth Proportional to 558,382.89, 837,667.75 and 438,435

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Solution

The fourth proportional to 558,382.89, 837,667.75 and 438,435 is: 657,725.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,382.89 : 837,667.75 = 438,435 : x
  2. Step 2: Convert to fraction form
    558,382.89/837,667.75 = 438,435/x
  3. Step 3: Cross multiply
    558,382.89x = 837,667.75 × 438,435
  4. Step 4: Simplify right side
    558,382.89x = 367,262,859,971.25
  5. Step 5: Solve for x
    x = 367,262,859,971.25/558,382.89
  6. Step 6: Final answer
    x = 657,725.85

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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.