Home / 998,421.60-1,377,821.52-545,712.60

Finding the Fourth Proportional to 998,421.60, 1,377,821.52 and 545,712.60

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Solution

The fourth proportional to 998,421.60, 1,377,821.52 and 545,712.60 is: 753,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,421.60 : 1,377,821.52 = 545,712.60 : x
  2. Step 2: Convert to fraction form
    998,421.60/1,377,821.52 = 545,712.60/x
  3. Step 3: Cross multiply
    998,421.60x = 1,377,821.52 × 545,712.60
  4. Step 4: Simplify right side
    998,421.60x = 751,894,564,015.15
  5. Step 5: Solve for x
    x = 751,894,564,015.15/998,421.60
  6. Step 6: Final answer
    x = 753,083.23

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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.