Home / 987,293.76-1,480,940.64-239,339.76

Finding the Fourth Proportional to 987,293.76, 1,480,940.64 and 239,339.76

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Solution

The fourth proportional to 987,293.76, 1,480,940.64 and 239,339.76 is: 359,009.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,293.76 : 1,480,940.64 = 239,339.76 : x
  2. Step 2: Convert to fraction form
    987,293.76/1,480,940.64 = 239,339.76/x
  3. Step 3: Cross multiply
    987,293.76x = 1,480,940.64 × 239,339.76
  4. Step 4: Simplify right side
    987,293.76x = 354,447,977,351.85
  5. Step 5: Solve for x
    x = 354,447,977,351.85/987,293.76
  6. Step 6: Final answer
    x = 359,009.64

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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.