Home / 759,411.42-1,139,118.25-310,132.32

Finding the Fourth Proportional to 759,411.42, 1,139,118.25 and 310,132.32

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Solution

The fourth proportional to 759,411.42, 1,139,118.25 and 310,132.32 is: 465,198.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,411.42 : 1,139,118.25 = 310,132.32 : x
  2. Step 2: Convert to fraction form
    759,411.42/1,139,118.25 = 310,132.32/x
  3. Step 3: Cross multiply
    759,411.42x = 1,139,118.25 × 310,132.32
  4. Step 4: Simplify right side
    759,411.42x = 353,277,384,801.22
  5. Step 5: Solve for x
    x = 353,277,384,801.22/759,411.42
  6. Step 6: Final answer
    x = 465,198.93

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Double scale
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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.