Home / 860,684.74-1,290,155.28-432,928.06

Finding the Fourth Proportional to 860,684.74, 1,290,155.28 and 432,928.06

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Solution

The fourth proportional to 860,684.74, 1,290,155.28 and 432,928.06 is: 648,953.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,684.74 : 1,290,155.28 = 432,928.06 : x
  2. Step 2: Convert to fraction form
    860,684.74/1,290,155.28 = 432,928.06/x
  3. Step 3: Cross multiply
    860,684.74x = 1,290,155.28 × 432,928.06
  4. Step 4: Simplify right side
    860,684.74x = 558,544,422,469.16
  5. Step 5: Solve for x
    x = 558,544,422,469.16/860,684.74
  6. Step 6: Final answer
    x = 648,953.56

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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.