Home / 910,479.72-1,364,656.20-685,115.76

Finding the Fourth Proportional to 910,479.72, 1,364,656.20 and 685,115.76

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Solution

The fourth proportional to 910,479.72, 1,364,656.20 and 685,115.76 is: 1,026,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,479.72 : 1,364,656.20 = 685,115.76 : x
  2. Step 2: Convert to fraction form
    910,479.72/1,364,656.20 = 685,115.76/x
  3. Step 3: Cross multiply
    910,479.72x = 1,364,656.20 × 685,115.76
  4. Step 4: Simplify right side
    910,479.72x = 934,947,469,601.71
  5. Step 5: Solve for x
    x = 934,947,469,601.71/910,479.72
  6. Step 6: Final answer
    x = 1,026,873.47

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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.