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Finding the Fourth Proportional to 617,151.02, 925,666.58 and 418,746.38

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Solution

The fourth proportional to 617,151.02, 925,666.58 and 418,746.38 is: 628,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,151.02 : 925,666.58 = 418,746.38 : x
  2. Step 2: Convert to fraction form
    617,151.02/925,666.58 = 418,746.38/x
  3. Step 3: Cross multiply
    617,151.02x = 925,666.58 × 418,746.38
  4. Step 4: Simplify right side
    617,151.02x = 387,619,529,461.98
  5. Step 5: Solve for x
    x = 387,619,529,461.98/617,151.02
  6. Step 6: Final answer
    x = 628,078.89

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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.