Home / 1,643,165.40-2,465,007.30-521,347.80

Finding the Fourth Proportional to 1,643,165.40, 2,465,007.30 and 521,347.80

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Solution

The fourth proportional to 1,643,165.40, 2,465,007.30 and 521,347.80 is: 782,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,165.40 : 2,465,007.30 = 521,347.80 : x
  2. Step 2: Convert to fraction form
    1,643,165.40/2,465,007.30 = 521,347.80/x
  3. Step 3: Cross multiply
    1,643,165.40x = 2,465,007.30 × 521,347.80
  4. Step 4: Simplify right side
    1,643,165.40x = 1,285,126,132,838.94
  5. Step 5: Solve for x
    x = 1,285,126,132,838.94/1,643,165.40
  6. Step 6: Final answer
    x = 782,103.94

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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.