Home / 1,211,801.10-1,817,701.65-788,786.70

Finding the Fourth Proportional to 1,211,801.10, 1,817,701.65 and 788,786.70

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Solution

The fourth proportional to 1,211,801.10, 1,817,701.65 and 788,786.70 is: 1,183,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,801.10 : 1,817,701.65 = 788,786.70 : x
  2. Step 2: Convert to fraction form
    1,211,801.10/1,817,701.65 = 788,786.70/x
  3. Step 3: Cross multiply
    1,211,801.10x = 1,817,701.65 × 788,786.70
  4. Step 4: Simplify right side
    1,211,801.10x = 1,433,778,886,088.06
  5. Step 5: Solve for x
    x = 1,433,778,886,088.06/1,211,801.10
  6. Step 6: Final answer
    x = 1,183,180.05

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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.