Home / 893,615.20-1,340,422.80-538,446.40

Finding the Fourth Proportional to 893,615.20, 1,340,422.80 and 538,446.40

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Solution

The fourth proportional to 893,615.20, 1,340,422.80 and 538,446.40 is: 807,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,615.20 : 1,340,422.80 = 538,446.40 : x
  2. Step 2: Convert to fraction form
    893,615.20/1,340,422.80 = 538,446.40/x
  3. Step 3: Cross multiply
    893,615.20x = 1,340,422.80 × 538,446.40
  4. Step 4: Simplify right side
    893,615.20x = 721,745,831,137.92
  5. Step 5: Solve for x
    x = 721,745,831,137.92/893,615.20
  6. Step 6: Final answer
    x = 807,669.60

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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.