Home / 767,965.15-1,151,089.02-287,730.93

Finding the Fourth Proportional to 767,965.15, 1,151,089.02 and 287,730.93

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Solution

The fourth proportional to 767,965.15, 1,151,089.02 and 287,730.93 is: 431,274.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,965.15 : 1,151,089.02 = 287,730.93 : x
  2. Step 2: Convert to fraction form
    767,965.15/1,151,089.02 = 287,730.93/x
  3. Step 3: Cross multiply
    767,965.15x = 1,151,089.02 × 287,730.93
  4. Step 4: Simplify right side
    767,965.15x = 331,203,914,237.39
  5. Step 5: Solve for x
    x = 331,203,914,237.39/767,965.15
  6. Step 6: Final answer
    x = 431,274.67

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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.