Home / 998,455.80-1,497,683.70-620,542.20

Finding the Fourth Proportional to 998,455.80, 1,497,683.70 and 620,542.20

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Solution

The fourth proportional to 998,455.80, 1,497,683.70 and 620,542.20 is: 930,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,455.80 : 1,497,683.70 = 620,542.20 : x
  2. Step 2: Convert to fraction form
    998,455.80/1,497,683.70 = 620,542.20/x
  3. Step 3: Cross multiply
    998,455.80x = 1,497,683.70 × 620,542.20
  4. Step 4: Simplify right side
    998,455.80x = 929,375,938,102.14
  5. Step 5: Solve for x
    x = 929,375,938,102.14/998,455.80
  6. Step 6: Final answer
    x = 930,813.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.