Home / 1,692,321.60-2,536,408.80-744,686.40

Finding the Fourth Proportional to 1,692,321.60, 2,536,408.80 and 744,686.40

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Solution

The fourth proportional to 1,692,321.60, 2,536,408.80 and 744,686.40 is: 1,116,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,321.60 : 2,536,408.80 = 744,686.40 : x
  2. Step 2: Convert to fraction form
    1,692,321.60/2,536,408.80 = 744,686.40/x
  3. Step 3: Cross multiply
    1,692,321.60x = 2,536,408.80 × 744,686.40
  4. Step 4: Simplify right side
    1,692,321.60x = 1,888,829,138,200.32
  5. Step 5: Solve for x
    x = 1,888,829,138,200.32/1,692,321.60
  6. Step 6: Final answer
    x = 1,116,117.14

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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.