Home / 814,809.60-1,221,740.64-545,245.76

Finding the Fourth Proportional to 814,809.60, 1,221,740.64 and 545,245.76

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Solution

The fourth proportional to 814,809.60, 1,221,740.64 and 545,245.76 is: 817,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,809.60 : 1,221,740.64 = 545,245.76 : x
  2. Step 2: Convert to fraction form
    814,809.60/1,221,740.64 = 545,245.76/x
  3. Step 3: Cross multiply
    814,809.60x = 1,221,740.64 × 545,245.76
  4. Step 4: Simplify right side
    814,809.60x = 666,148,903,779.69
  5. Step 5: Solve for x
    x = 666,148,903,779.69/814,809.60
  6. Step 6: Final answer
    x = 817,551.61

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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.