Home / 688,439.36-1,033,063.57-289,049.42

Finding the Fourth Proportional to 688,439.36, 1,033,063.57 and 289,049.42

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Solution

The fourth proportional to 688,439.36, 1,033,063.57 and 289,049.42 is: 433,743.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,439.36 : 1,033,063.57 = 289,049.42 : x
  2. Step 2: Convert to fraction form
    688,439.36/1,033,063.57 = 289,049.42/x
  3. Step 3: Cross multiply
    688,439.36x = 1,033,063.57 × 289,049.42
  4. Step 4: Simplify right side
    688,439.36x = 298,606,425,731.63
  5. Step 5: Solve for x
    x = 298,606,425,731.63/688,439.36
  6. Step 6: Final answer
    x = 433,743.98

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1.5x scale

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.