Home / 1,039,200.60-1,558,800.90-638,542.20

Finding the Fourth Proportional to 1,039,200.60, 1,558,800.90 and 638,542.20

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Solution

The fourth proportional to 1,039,200.60, 1,558,800.90 and 638,542.20 is: 957,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,200.60 : 1,558,800.90 = 638,542.20 : x
  2. Step 2: Convert to fraction form
    1,039,200.60/1,558,800.90 = 638,542.20/x
  3. Step 3: Cross multiply
    1,039,200.60x = 1,558,800.90 × 638,542.20
  4. Step 4: Simplify right side
    1,039,200.60x = 995,360,156,047.98
  5. Step 5: Solve for x
    x = 995,360,156,047.98/1,039,200.60
  6. Step 6: Final answer
    x = 957,813.30

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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.