Home / 1,378,825.34-2,068,570.20-432,196.05

Finding the Fourth Proportional to 1,378,825.34, 2,068,570.20 and 432,196.05

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Solution

The fourth proportional to 1,378,825.34, 2,068,570.20 and 432,196.05 is: 648,398.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,825.34 : 2,068,570.20 = 432,196.05 : x
  2. Step 2: Convert to fraction form
    1,378,825.34/2,068,570.20 = 432,196.05/x
  3. Step 3: Cross multiply
    1,378,825.34x = 2,068,570.20 × 432,196.05
  4. Step 4: Simplify right side
    1,378,825.34x = 894,027,878,965.58
  5. Step 5: Solve for x
    x = 894,027,878,965.58/1,378,825.34
  6. Step 6: Final answer
    x = 648,398.21

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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.