Home / 479,728.13-662,083.14-278,524.13

Finding the Fourth Proportional to 479,728.13, 662,083.14 and 278,524.13

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Solution

The fourth proportional to 479,728.13, 662,083.14 and 278,524.13 is: 384,397.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,728.13 : 662,083.14 = 278,524.13 : x
  2. Step 2: Convert to fraction form
    479,728.13/662,083.14 = 278,524.13/x
  3. Step 3: Cross multiply
    479,728.13x = 662,083.14 × 278,524.13
  4. Step 4: Simplify right side
    479,728.13x = 184,406,127,245.75
  5. Step 5: Solve for x
    x = 184,406,127,245.75/479,728.13
  6. Step 6: Final answer
    x = 384,397.16

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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.