Home / 786,446.12-1,085,285.25-442,281.96

Finding the Fourth Proportional to 786,446.12, 1,085,285.25 and 442,281.96

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Solution

The fourth proportional to 786,446.12, 1,085,285.25 and 442,281.96 is: 610,343.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,446.12 : 1,085,285.25 = 442,281.96 : x
  2. Step 2: Convert to fraction form
    786,446.12/1,085,285.25 = 442,281.96/x
  3. Step 3: Cross multiply
    786,446.12x = 1,085,285.25 × 442,281.96
  4. Step 4: Simplify right side
    786,446.12x = 480,002,087,529.09
  5. Step 5: Solve for x
    x = 480,002,087,529.09/786,446.12
  6. Step 6: Final answer
    x = 610,343.26

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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.