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Finding the Fourth Proportional to 472,752.63, 652,407.89 and 257,900.67

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Solution

The fourth proportional to 472,752.63, 652,407.89 and 257,900.67 is: 355,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,752.63 : 652,407.89 = 257,900.67 : x
  2. Step 2: Convert to fraction form
    472,752.63/652,407.89 = 257,900.67/x
  3. Step 3: Cross multiply
    472,752.63x = 652,407.89 × 257,900.67
  4. Step 4: Simplify right side
    472,752.63x = 168,256,430,654.78
  5. Step 5: Solve for x
    x = 168,256,430,654.78/472,752.63
  6. Step 6: Final answer
    x = 355,907.97

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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.