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Finding the Fourth Proportional to 425,050.72, 637,825.21 and 304,978.28

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Solution

The fourth proportional to 425,050.72, 637,825.21 and 304,978.28 is: 457,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,050.72 : 637,825.21 = 304,978.28 : x
  2. Step 2: Convert to fraction form
    425,050.72/637,825.21 = 304,978.28/x
  3. Step 3: Cross multiply
    425,050.72x = 637,825.21 × 304,978.28
  4. Step 4: Simplify right side
    425,050.72x = 194,522,831,534.87
  5. Step 5: Solve for x
    x = 194,522,831,534.87/425,050.72
  6. Step 6: Final answer
    x = 457,646.17

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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.