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Finding the Fourth Proportional to 810,763, 1,216,341.36 and 249,797.50

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Solution

The fourth proportional to 810,763, 1,216,341.36 and 249,797.50 is: 374,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,763 : 1,216,341.36 = 249,797.50 : x
  2. Step 2: Convert to fraction form
    810,763/1,216,341.36 = 249,797.50/x
  3. Step 3: Cross multiply
    810,763x = 1,216,341.36 × 249,797.50
  4. Step 4: Simplify right side
    810,763x = 303,839,030,874.60
  5. Step 5: Solve for x
    x = 303,839,030,874.60/810,763
  6. Step 6: Final answer
    x = 374,756.90

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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.