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Finding the Fourth Proportional to 626,546.30, 865,338.65 and 423,435.96

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Solution

The fourth proportional to 626,546.30, 865,338.65 and 423,435.96 is: 584,817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,546.30 : 865,338.65 = 423,435.96 : x
  2. Step 2: Convert to fraction form
    626,546.30/865,338.65 = 423,435.96/x
  3. Step 3: Cross multiply
    626,546.30x = 865,338.65 × 423,435.96
  4. Step 4: Simplify right side
    626,546.30x = 366,415,499,870.67
  5. Step 5: Solve for x
    x = 366,415,499,870.67/626,546.30
  6. Step 6: Final answer
    x = 584,817.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.