Home / 1,643,446.60-2,465,601.90-521,513.80

Finding the Fourth Proportional to 1,643,446.60, 2,465,601.90 and 521,513.80

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Solution

The fourth proportional to 1,643,446.60, 2,465,601.90 and 521,513.80 is: 782,407.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,446.60 : 2,465,601.90 = 521,513.80 : x
  2. Step 2: Convert to fraction form
    1,643,446.60/2,465,601.90 = 521,513.80/x
  3. Step 3: Cross multiply
    1,643,446.60x = 2,465,601.90 × 521,513.80
  4. Step 4: Simplify right side
    1,643,446.60x = 1,285,845,416,156.22
  5. Step 5: Solve for x
    x = 1,285,845,416,156.22/1,643,446.60
  6. Step 6: Final answer
    x = 782,407.79

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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.