Home / 1,229,967.60-1,696,709.88-1,000,780.80

Finding the Fourth Proportional to 1,229,967.60, 1,696,709.88 and 1,000,780.80

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Solution

The fourth proportional to 1,229,967.60, 1,696,709.88 and 1,000,780.80 is: 1,380,552.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,967.60 : 1,696,709.88 = 1,000,780.80 : x
  2. Step 2: Convert to fraction form
    1,229,967.60/1,696,709.88 = 1,000,780.80/x
  3. Step 3: Cross multiply
    1,229,967.60x = 1,696,709.88 × 1,000,780.80
  4. Step 4: Simplify right side
    1,229,967.60x = 1,698,034,671,074.30
  5. Step 5: Solve for x
    x = 1,698,034,671,074.30/1,229,967.60
  6. Step 6: Final answer
    x = 1,380,552.36

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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.