Home / 700,820.37-1,051,503.30-280,216.53

Finding the Fourth Proportional to 700,820.37, 1,051,503.30 and 280,216.53

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Solution

The fourth proportional to 700,820.37, 1,051,503.30 and 280,216.53 is: 420,433.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,820.37 : 1,051,503.30 = 280,216.53 : x
  2. Step 2: Convert to fraction form
    700,820.37/1,051,503.30 = 280,216.53/x
  3. Step 3: Cross multiply
    700,820.37x = 1,051,503.30 × 280,216.53
  4. Step 4: Simplify right side
    700,820.37x = 294,648,606,009.55
  5. Step 5: Solve for x
    x = 294,648,606,009.55/700,820.37
  6. Step 6: Final answer
    x = 420,433.85

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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.