Home / 1,123,131.60-1,685,280.60-492,109.20

Finding the Fourth Proportional to 1,123,131.60, 1,685,280.60 and 492,109.20

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Solution

The fourth proportional to 1,123,131.60, 1,685,280.60 and 492,109.20 is: 738,419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,131.60 : 1,685,280.60 = 492,109.20 : x
  2. Step 2: Convert to fraction form
    1,123,131.60/1,685,280.60 = 492,109.20/x
  3. Step 3: Cross multiply
    1,123,131.60x = 1,685,280.60 × 492,109.20
  4. Step 4: Simplify right side
    1,123,131.60x = 829,342,087,841.52
  5. Step 5: Solve for x
    x = 829,342,087,841.52/1,123,131.60
  6. Step 6: Final answer
    x = 738,419.33

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1.5x scale

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.