Home / 759,775.87-1,139,242.92-310,811.86

Finding the Fourth Proportional to 759,775.87, 1,139,242.92 and 310,811.86

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Solution

The fourth proportional to 759,775.87, 1,139,242.92 and 310,811.86 is: 466,045.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,775.87 : 1,139,242.92 = 310,811.86 : x
  2. Step 2: Convert to fraction form
    759,775.87/1,139,242.92 = 310,811.86/x
  3. Step 3: Cross multiply
    759,775.87x = 1,139,242.92 × 310,811.86
  4. Step 4: Simplify right side
    759,775.87x = 354,090,210,957.03
  5. Step 5: Solve for x
    x = 354,090,210,957.03/759,775.87
  6. Step 6: Final answer
    x = 466,045.61

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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.