Home / 1,402,380.29-2,101,909.19-643,582.41

Finding the Fourth Proportional to 1,402,380.29, 2,101,909.19 and 643,582.41

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Solution

The fourth proportional to 1,402,380.29, 2,101,909.19 and 643,582.41 is: 964,611.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,380.29 : 2,101,909.19 = 643,582.41 : x
  2. Step 2: Convert to fraction form
    1,402,380.29/2,101,909.19 = 643,582.41/x
  3. Step 3: Cross multiply
    1,402,380.29x = 2,101,909.19 × 643,582.41
  4. Step 4: Simplify right side
    1,402,380.29x = 1,352,751,778,883.44
  5. Step 5: Solve for x
    x = 1,352,751,778,883.44/1,402,380.29
  6. Step 6: Final answer
    x = 964,611.24

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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.