Home / 765,503.06-1,146,942.38-540,460.76

Finding the Fourth Proportional to 765,503.06, 1,146,942.38 and 540,460.76

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Solution

The fourth proportional to 765,503.06, 1,146,942.38 and 540,460.76 is: 809,764.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,503.06 : 1,146,942.38 = 540,460.76 : x
  2. Step 2: Convert to fraction form
    765,503.06/1,146,942.38 = 540,460.76/x
  3. Step 3: Cross multiply
    765,503.06x = 1,146,942.38 × 540,460.76
  4. Step 4: Simplify right side
    765,503.06x = 619,877,345,987.45
  5. Step 5: Solve for x
    x = 619,877,345,987.45/765,503.06
  6. Step 6: Final answer
    x = 809,764.69

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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.