Home / 759,684.23-1,139,105.66-310,720.38

Finding the Fourth Proportional to 759,684.23, 1,139,105.66 and 310,720.38

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Solution

The fourth proportional to 759,684.23, 1,139,105.66 and 310,720.38 is: 465,908.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,684.23 : 1,139,105.66 = 310,720.38 : x
  2. Step 2: Convert to fraction form
    759,684.23/1,139,105.66 = 310,720.38/x
  3. Step 3: Cross multiply
    759,684.23x = 1,139,105.66 × 310,720.38
  4. Step 4: Simplify right side
    759,684.23x = 353,943,341,787.74
  5. Step 5: Solve for x
    x = 353,943,341,787.74/759,684.23
  6. Step 6: Final answer
    x = 465,908.50

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1.5x scale

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.