Home / 786,379.23-1,085,171.18-442,205.37

Finding the Fourth Proportional to 786,379.23, 1,085,171.18 and 442,205.37

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Solution

The fourth proportional to 786,379.23, 1,085,171.18 and 442,205.37 is: 610,225.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,379.23 : 1,085,171.18 = 442,205.37 : x
  2. Step 2: Convert to fraction form
    786,379.23/1,085,171.18 = 442,205.37/x
  3. Step 3: Cross multiply
    786,379.23x = 1,085,171.18 × 442,205.37
  4. Step 4: Simplify right side
    786,379.23x = 479,868,520,954.21
  5. Step 5: Solve for x
    x = 479,868,520,954.21/786,379.23
  6. Step 6: Final answer
    x = 610,225.32

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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.