Home / 487,660.77-672,944.79-272,759.32

Finding the Fourth Proportional to 487,660.77, 672,944.79 and 272,759.32

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Solution

The fourth proportional to 487,660.77, 672,944.79 and 272,759.32 is: 376,392.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,660.77 : 672,944.79 = 272,759.32 : x
  2. Step 2: Convert to fraction form
    487,660.77/672,944.79 = 272,759.32/x
  3. Step 3: Cross multiply
    487,660.77x = 672,944.79 × 272,759.32
  4. Step 4: Simplify right side
    487,660.77x = 183,551,961,396.66
  5. Step 5: Solve for x
    x = 183,551,961,396.66/487,660.77
  6. Step 6: Final answer
    x = 376,392.72

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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.