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Finding the Fourth Proportional to 786,982.92, 1,085,901 and 442,771.08

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Solution

The fourth proportional to 786,982.92, 1,085,901 and 442,771.08 is: 610,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,982.92 : 1,085,901 = 442,771.08 : x
  2. Step 2: Convert to fraction form
    786,982.92/1,085,901 = 442,771.08/x
  3. Step 3: Cross multiply
    786,982.92x = 1,085,901 × 442,771.08
  4. Step 4: Simplify right side
    786,982.92x = 480,805,558,543.08
  5. Step 5: Solve for x
    x = 480,805,558,543.08/786,982.92
  6. Step 6: Final answer
    x = 610,947.90

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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.