Home / 859,302.50-1,185,705.75-496,656.45

Finding the Fourth Proportional to 859,302.50, 1,185,705.75 and 496,656.45

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Solution

The fourth proportional to 859,302.50, 1,185,705.75 and 496,656.45 is: 685,309.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,302.50 : 1,185,705.75 = 496,656.45 : x
  2. Step 2: Convert to fraction form
    859,302.50/1,185,705.75 = 496,656.45/x
  3. Step 3: Cross multiply
    859,302.50x = 1,185,705.75 × 496,656.45
  4. Step 4: Simplify right side
    859,302.50x = 588,888,408,539.59
  5. Step 5: Solve for x
    x = 588,888,408,539.59/859,302.50
  6. Step 6: Final answer
    x = 685,309.78

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Why These Related Problems?

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