Home / 803,115.72-1,108,392.30-480,825.54

Finding the Fourth Proportional to 803,115.72, 1,108,392.30 and 480,825.54

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Solution

The fourth proportional to 803,115.72, 1,108,392.30 and 480,825.54 is: 663,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,115.72 : 1,108,392.30 = 480,825.54 : x
  2. Step 2: Convert to fraction form
    803,115.72/1,108,392.30 = 480,825.54/x
  3. Step 3: Cross multiply
    803,115.72x = 1,108,392.30 × 480,825.54
  4. Step 4: Simplify right side
    803,115.72x = 532,943,326,179.34
  5. Step 5: Solve for x
    x = 532,943,326,179.34/803,115.72
  6. Step 6: Final answer
    x = 663,594.69

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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.