Home / 929,429.87-1,282,509.11-521,446.84

Finding the Fourth Proportional to 929,429.87, 1,282,509.11 and 521,446.84

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Solution

The fourth proportional to 929,429.87, 1,282,509.11 and 521,446.84 is: 719,538.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,429.87 : 1,282,509.11 = 521,446.84 : x
  2. Step 2: Convert to fraction form
    929,429.87/1,282,509.11 = 521,446.84/x
  3. Step 3: Cross multiply
    929,429.87x = 1,282,509.11 × 521,446.84
  4. Step 4: Simplify right side
    929,429.87x = 668,760,320,778.06
  5. Step 5: Solve for x
    x = 668,760,320,778.06/929,429.87
  6. Step 6: Final answer
    x = 719,538.23

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1.5x scale

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.