Home / 673,529.60-929,630.40-387,216.02

Finding the Fourth Proportional to 673,529.60, 929,630.40 and 387,216.02

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Solution

The fourth proportional to 673,529.60, 929,630.40 and 387,216.02 is: 534,449.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,529.60 : 929,630.40 = 387,216.02 : x
  2. Step 2: Convert to fraction form
    673,529.60/929,630.40 = 387,216.02/x
  3. Step 3: Cross multiply
    673,529.60x = 929,630.40 × 387,216.02
  4. Step 4: Simplify right side
    673,529.60x = 359,967,783,559.01
  5. Step 5: Solve for x
    x = 359,967,783,559.01/673,529.60
  6. Step 6: Final answer
    x = 534,449.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.