Home / 767,999.80-1,151,999.70-487,833.40

Finding the Fourth Proportional to 767,999.80, 1,151,999.70 and 487,833.40

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Solution

The fourth proportional to 767,999.80, 1,151,999.70 and 487,833.40 is: 731,750.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,999.80 : 1,151,999.70 = 487,833.40 : x
  2. Step 2: Convert to fraction form
    767,999.80/1,151,999.70 = 487,833.40/x
  3. Step 3: Cross multiply
    767,999.80x = 1,151,999.70 × 487,833.40
  4. Step 4: Simplify right side
    767,999.80x = 561,983,930,449.98
  5. Step 5: Solve for x
    x = 561,983,930,449.98/767,999.80
  6. Step 6: Final answer
    x = 731,750.10

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1.5x scale

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.