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Finding the Fourth Proportional to 617,910.40, 925,828.80 and 301,686.40

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Solution

The fourth proportional to 617,910.40, 925,828.80 and 301,686.40 is: 452,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,910.40 : 925,828.80 = 301,686.40 : x
  2. Step 2: Convert to fraction form
    617,910.40/925,828.80 = 301,686.40/x
  3. Step 3: Cross multiply
    617,910.40x = 925,828.80 × 301,686.40
  4. Step 4: Simplify right side
    617,910.40x = 279,309,957,688.32
  5. Step 5: Solve for x
    x = 279,309,957,688.32/617,910.40
  6. Step 6: Final answer
    x = 452,023.40

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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.