Home / 418,739.67-577,953.74-255,432.26

Finding the Fourth Proportional to 418,739.67, 577,953.74 and 255,432.26

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Solution

The fourth proportional to 418,739.67, 577,953.74 and 255,432.26 is: 352,553.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,739.67 : 577,953.74 = 255,432.26 : x
  2. Step 2: Convert to fraction form
    418,739.67/577,953.74 = 255,432.26/x
  3. Step 3: Cross multiply
    418,739.67x = 577,953.74 × 255,432.26
  4. Step 4: Simplify right side
    418,739.67x = 147,628,032,067.12
  5. Step 5: Solve for x
    x = 147,628,032,067.12/418,739.67
  6. Step 6: Final answer
    x = 352,553.25

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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.