Home / 998,218.64-1,377,542.30-545,509.64

Finding the Fourth Proportional to 998,218.64, 1,377,542.30 and 545,509.64

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Solution

The fourth proportional to 998,218.64, 1,377,542.30 and 545,509.64 is: 752,803.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,218.64 : 1,377,542.30 = 545,509.64 : x
  2. Step 2: Convert to fraction form
    998,218.64/1,377,542.30 = 545,509.64/x
  3. Step 3: Cross multiply
    998,218.64x = 1,377,542.30 × 545,509.64
  4. Step 4: Simplify right side
    998,218.64x = 751,462,604,157.77
  5. Step 5: Solve for x
    x = 751,462,604,157.77/998,218.64
  6. Step 6: Final answer
    x = 752,803.62

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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.