Home / 479,725.13-662,079-278,521.13

Finding the Fourth Proportional to 479,725.13, 662,079 and 278,521.13

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Solution

The fourth proportional to 479,725.13, 662,079 and 278,521.13 is: 384,393.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,725.13 : 662,079 = 278,521.13 : x
  2. Step 2: Convert to fraction form
    479,725.13/662,079 = 278,521.13/x
  3. Step 3: Cross multiply
    479,725.13x = 662,079 × 278,521.13
  4. Step 4: Simplify right side
    479,725.13x = 184,402,987,918.88
  5. Step 5: Solve for x
    x = 184,402,987,918.88/479,725.13
  6. Step 6: Final answer
    x = 384,393.02

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1.5x scale

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.