Home / 847,135.13-1,169,054.67-465,170.11

Finding the Fourth Proportional to 847,135.13, 1,169,054.67 and 465,170.11

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Solution

The fourth proportional to 847,135.13, 1,169,054.67 and 465,170.11 is: 641,939.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,135.13 : 1,169,054.67 = 465,170.11 : x
  2. Step 2: Convert to fraction form
    847,135.13/1,169,054.67 = 465,170.11/x
  3. Step 3: Cross multiply
    847,135.13x = 1,169,054.67 × 465,170.11
  4. Step 4: Simplify right side
    847,135.13x = 543,809,288,261.67
  5. Step 5: Solve for x
    x = 543,809,288,261.67/847,135.13
  6. Step 6: Final answer
    x = 641,939.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.