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Finding the Fourth Proportional to 472,709.70, 652,315.41 and 257,848.02

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Solution

The fourth proportional to 472,709.70, 652,315.41 and 257,848.02 is: 355,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,709.70 : 652,315.41 = 257,848.02 : x
  2. Step 2: Convert to fraction form
    472,709.70/652,315.41 = 257,848.02/x
  3. Step 3: Cross multiply
    472,709.70x = 652,315.41 × 257,848.02
  4. Step 4: Simplify right side
    472,709.70x = 168,198,236,883.99
  5. Step 5: Solve for x
    x = 168,198,236,883.99/472,709.70
  6. Step 6: Final answer
    x = 355,817.19

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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.