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Finding the Fourth Proportional to 435,029.70, 652,544.55 and 393,039.30

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Solution

The fourth proportional to 435,029.70, 652,544.55 and 393,039.30 is: 589,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,029.70 : 652,544.55 = 393,039.30 : x
  2. Step 2: Convert to fraction form
    435,029.70/652,544.55 = 393,039.30/x
  3. Step 3: Cross multiply
    435,029.70x = 652,544.55 × 393,039.30
  4. Step 4: Simplify right side
    435,029.70x = 256,475,653,150.82
  5. Step 5: Solve for x
    x = 256,475,653,150.82/435,029.70
  6. Step 6: Final answer
    x = 589,558.95

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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.