Home / 1,208,742.20-1,813,113.30-788,492.60

Finding the Fourth Proportional to 1,208,742.20, 1,813,113.30 and 788,492.60

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Solution

The fourth proportional to 1,208,742.20, 1,813,113.30 and 788,492.60 is: 1,182,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,742.20 : 1,813,113.30 = 788,492.60 : x
  2. Step 2: Convert to fraction form
    1,208,742.20/1,813,113.30 = 788,492.60/x
  3. Step 3: Cross multiply
    1,208,742.20x = 1,813,113.30 × 788,492.60
  4. Step 4: Simplify right side
    1,208,742.20x = 1,429,626,420,011.58
  5. Step 5: Solve for x
    x = 1,429,626,420,011.58/1,208,742.20
  6. Step 6: Final answer
    x = 1,182,738.90

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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.