Home / 868,633.25-1,198,763.12-486,783.05

Finding the Fourth Proportional to 868,633.25, 1,198,763.12 and 486,783.05

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Solution

The fourth proportional to 868,633.25, 1,198,763.12 and 486,783.05 is: 671,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,633.25 : 1,198,763.12 = 486,783.05 : x
  2. Step 2: Convert to fraction form
    868,633.25/1,198,763.12 = 486,783.05/x
  3. Step 3: Cross multiply
    868,633.25x = 1,198,763.12 × 486,783.05
  4. Step 4: Simplify right side
    868,633.25x = 583,537,565,347.20
  5. Step 5: Solve for x
    x = 583,537,565,347.20/868,633.25
  6. Step 6: Final answer
    x = 671,788.20

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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.