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Finding the Fourth Proportional to 860,643.04, 1,289,615.28 and 544,432

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Solution

The fourth proportional to 860,643.04, 1,289,615.28 and 544,432 is: 815,794.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,643.04 : 1,289,615.28 = 544,432 : x
  2. Step 2: Convert to fraction form
    860,643.04/1,289,615.28 = 544,432/x
  3. Step 3: Cross multiply
    860,643.04x = 1,289,615.28 × 544,432
  4. Step 4: Simplify right side
    860,643.04x = 702,107,826,120.96
  5. Step 5: Solve for x
    x = 702,107,826,120.96/860,643.04
  6. Step 6: Final answer
    x = 815,794.46

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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.