Home / 1,211,766.60-1,817,649.90-788,752.20

Finding the Fourth Proportional to 1,211,766.60, 1,817,649.90 and 788,752.20

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Solution

The fourth proportional to 1,211,766.60, 1,817,649.90 and 788,752.20 is: 1,183,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,766.60 : 1,817,649.90 = 788,752.20 : x
  2. Step 2: Convert to fraction form
    1,211,766.60/1,817,649.90 = 788,752.20/x
  3. Step 3: Cross multiply
    1,211,766.60x = 1,817,649.90 × 788,752.20
  4. Step 4: Simplify right side
    1,211,766.60x = 1,433,675,357,454.78
  5. Step 5: Solve for x
    x = 1,433,675,357,454.78/1,211,766.60
  6. Step 6: Final answer
    x = 1,183,128.30

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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.