Home / 876,031.20-1,313,139.60-475,826.40

Finding the Fourth Proportional to 876,031.20, 1,313,139.60 and 475,826.40

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Solution

The fourth proportional to 876,031.20, 1,313,139.60 and 475,826.40 is: 713,246.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,031.20 : 1,313,139.60 = 475,826.40 : x
  2. Step 2: Convert to fraction form
    876,031.20/1,313,139.60 = 475,826.40/x
  3. Step 3: Cross multiply
    876,031.20x = 1,313,139.60 × 475,826.40
  4. Step 4: Simplify right side
    876,031.20x = 624,826,488,565.44
  5. Step 5: Solve for x
    x = 624,826,488,565.44/876,031.20
  6. Step 6: Final answer
    x = 713,246.84

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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.