Home / 765,457.87-1,146,874.60-540,415.57

Finding the Fourth Proportional to 765,457.87, 1,146,874.60 and 540,415.57

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Solution

The fourth proportional to 765,457.87, 1,146,874.60 and 540,415.57 is: 809,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,457.87 : 1,146,874.60 = 540,415.57 : x
  2. Step 2: Convert to fraction form
    765,457.87/1,146,874.60 = 540,415.57/x
  3. Step 3: Cross multiply
    765,457.87x = 1,146,874.60 × 540,415.57
  4. Step 4: Simplify right side
    765,457.87x = 619,788,888,485.86
  5. Step 5: Solve for x
    x = 619,788,888,485.86/765,457.87
  6. Step 6: Final answer
    x = 809,696.93

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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.