Home / 759,412.69-1,139,120.15-310,133.58

Finding the Fourth Proportional to 759,412.69, 1,139,120.15 and 310,133.58

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Solution

The fourth proportional to 759,412.69, 1,139,120.15 and 310,133.58 is: 465,200.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,412.69 : 1,139,120.15 = 310,133.58 : x
  2. Step 2: Convert to fraction form
    759,412.69/1,139,120.15 = 310,133.58/x
  3. Step 3: Cross multiply
    759,412.69x = 1,139,120.15 × 310,133.58
  4. Step 4: Simplify right side
    759,412.69x = 353,279,415,266.96
  5. Step 5: Solve for x
    x = 353,279,415,266.96/759,412.69
  6. Step 6: Final answer
    x = 465,200.83

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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.