Home / 1,493,931.80-2,240,236.74-428,726.72

Finding the Fourth Proportional to 1,493,931.80, 2,240,236.74 and 428,726.72

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Solution

The fourth proportional to 1,493,931.80, 2,240,236.74 and 428,726.72 is: 642,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493,931.80 : 2,240,236.74 = 428,726.72 : x
  2. Step 2: Convert to fraction form
    1,493,931.80/2,240,236.74 = 428,726.72/x
  3. Step 3: Cross multiply
    1,493,931.80x = 2,240,236.74 × 428,726.72
  4. Step 4: Simplify right side
    1,493,931.80x = 960,449,356,772.01
  5. Step 5: Solve for x
    x = 960,449,356,772.01/1,493,931.80
  6. Step 6: Final answer
    x = 642,900.40

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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.