Home / 874,748.55-1,312,122.83-369,879.60

Finding the Fourth Proportional to 874,748.55, 1,312,122.83 and 369,879.60

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Solution

The fourth proportional to 874,748.55, 1,312,122.83 and 369,879.60 is: 554,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,748.55 : 1,312,122.83 = 369,879.60 : x
  2. Step 2: Convert to fraction form
    874,748.55/1,312,122.83 = 369,879.60/x
  3. Step 3: Cross multiply
    874,748.55x = 1,312,122.83 × 369,879.60
  4. Step 4: Simplify right side
    874,748.55x = 485,327,465,661.87
  5. Step 5: Solve for x
    x = 485,327,465,661.87/874,748.55
  6. Step 6: Final answer
    x = 554,819.40

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Double scale
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Similar ratio
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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.