Home / 787,815.58-1,087,171.59-448,276.54

Finding the Fourth Proportional to 787,815.58, 1,087,171.59 and 448,276.54

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Solution

The fourth proportional to 787,815.58, 1,087,171.59 and 448,276.54 is: 618,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,815.58 : 1,087,171.59 = 448,276.54 : x
  2. Step 2: Convert to fraction form
    787,815.58/1,087,171.59 = 448,276.54/x
  3. Step 3: Cross multiply
    787,815.58x = 1,087,171.59 × 448,276.54
  4. Step 4: Simplify right side
    787,815.58x = 487,353,518,751.50
  5. Step 5: Solve for x
    x = 487,353,518,751.50/787,815.58
  6. Step 6: Final answer
    x = 618,613.71

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Double scale
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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.