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Finding the Fourth Proportional to 860,580.60, 1,290,862.64 and 523,717

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Solution

The fourth proportional to 860,580.60, 1,290,862.64 and 523,717 is: 785,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,580.60 : 1,290,862.64 = 523,717 : x
  2. Step 2: Convert to fraction form
    860,580.60/1,290,862.64 = 523,717/x
  3. Step 3: Cross multiply
    860,580.60x = 1,290,862.64 × 523,717
  4. Step 4: Simplify right side
    860,580.60x = 676,046,709,232.88
  5. Step 5: Solve for x
    x = 676,046,709,232.88/860,580.60
  6. Step 6: Final answer
    x = 785,570.47

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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.