Home / 479,726.13-662,080.38-278,522.13

Finding the Fourth Proportional to 479,726.13, 662,080.38 and 278,522.13

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Solution

The fourth proportional to 479,726.13, 662,080.38 and 278,522.13 is: 384,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,726.13 : 662,080.38 = 278,522.13 : x
  2. Step 2: Convert to fraction form
    479,726.13/662,080.38 = 278,522.13/x
  3. Step 3: Cross multiply
    479,726.13x = 662,080.38 × 278,522.13
  4. Step 4: Simplify right side
    479,726.13x = 184,404,037,668.81
  5. Step 5: Solve for x
    x = 184,404,037,668.81/479,726.13
  6. Step 6: Final answer
    x = 384,394.40

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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.