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Finding the Fourth Proportional to 860,146.84, 1,187,043.16 and 478,180

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Solution

The fourth proportional to 860,146.84, 1,187,043.16 and 478,180 is: 659,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,146.84 : 1,187,043.16 = 478,180 : x
  2. Step 2: Convert to fraction form
    860,146.84/1,187,043.16 = 478,180/x
  3. Step 3: Cross multiply
    860,146.84x = 1,187,043.16 × 478,180
  4. Step 4: Simplify right side
    860,146.84x = 567,620,298,248.80
  5. Step 5: Solve for x
    x = 567,620,298,248.80/860,146.84
  6. Step 6: Final answer
    x = 659,910.93

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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.