Home / 2,129,477.40-3,195,090.90-782,285.40

Finding the Fourth Proportional to 2,129,477.40, 3,195,090.90 and 782,285.40

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Solution

The fourth proportional to 2,129,477.40, 3,195,090.90 and 782,285.40 is: 1,173,749.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,477.40 : 3,195,090.90 = 782,285.40 : x
  2. Step 2: Convert to fraction form
    2,129,477.40/3,195,090.90 = 782,285.40/x
  3. Step 3: Cross multiply
    2,129,477.40x = 3,195,090.90 × 782,285.40
  4. Step 4: Simplify right side
    2,129,477.40x = 2,499,472,962,742.86
  5. Step 5: Solve for x
    x = 2,499,472,962,742.86/2,129,477.40
  6. Step 6: Final answer
    x = 1,173,749.47

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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.