Home / 786,383.24-1,085,176.70-442,209.38

Finding the Fourth Proportional to 786,383.24, 1,085,176.70 and 442,209.38

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Solution

The fourth proportional to 786,383.24, 1,085,176.70 and 442,209.38 is: 610,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,383.24 : 1,085,176.70 = 442,209.38 : x
  2. Step 2: Convert to fraction form
    786,383.24/1,085,176.70 = 442,209.38/x
  3. Step 3: Cross multiply
    786,383.24x = 1,085,176.70 × 442,209.38
  4. Step 4: Simplify right side
    786,383.24x = 479,875,315,697.45
  5. Step 5: Solve for x
    x = 479,875,315,697.45/786,383.24
  6. Step 6: Final answer
    x = 610,230.85

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1.5x scale

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.