Home / 783,720.88-1,174,446.70-540,312.11

Finding the Fourth Proportional to 783,720.88, 1,174,446.70 and 540,312.11

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Solution

The fourth proportional to 783,720.88, 1,174,446.70 and 540,312.11 is: 809,685.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,720.88 : 1,174,446.70 = 540,312.11 : x
  2. Step 2: Convert to fraction form
    783,720.88/1,174,446.70 = 540,312.11/x
  3. Step 3: Cross multiply
    783,720.88x = 1,174,446.70 × 540,312.11
  4. Step 4: Simplify right side
    783,720.88x = 634,567,774,559.54
  5. Step 5: Solve for x
    x = 634,567,774,559.54/783,720.88
  6. Step 6: Final answer
    x = 809,685.94

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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.