Home / 826,479.30-1,140,503.05-458,979.77

Finding the Fourth Proportional to 826,479.30, 1,140,503.05 and 458,979.77

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Solution

The fourth proportional to 826,479.30, 1,140,503.05 and 458,979.77 is: 633,370.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,479.30 : 1,140,503.05 = 458,979.77 : x
  2. Step 2: Convert to fraction form
    826,479.30/1,140,503.05 = 458,979.77/x
  3. Step 3: Cross multiply
    826,479.30x = 1,140,503.05 × 458,979.77
  4. Step 4: Simplify right side
    826,479.30x = 523,467,826,278.08
  5. Step 5: Solve for x
    x = 523,467,826,278.08/826,479.30
  6. Step 6: Final answer
    x = 633,370.76

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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.