Home / 1,139,280.68-1,709,762.11-540,243.86

Finding the Fourth Proportional to 1,139,280.68, 1,709,762.11 and 540,243.86

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Solution

The fourth proportional to 1,139,280.68, 1,709,762.11 and 540,243.86 is: 810,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,280.68 : 1,709,762.11 = 540,243.86 : x
  2. Step 2: Convert to fraction form
    1,139,280.68/1,709,762.11 = 540,243.86/x
  3. Step 3: Cross multiply
    1,139,280.68x = 1,709,762.11 × 540,243.86
  4. Step 4: Simplify right side
    1,139,280.68x = 923,688,472,088.72
  5. Step 5: Solve for x
    x = 923,688,472,088.72/1,139,280.68
  6. Step 6: Final answer
    x = 810,764.62

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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.