Home / 1,386,104.55-2,079,155.65-521,700.99

Finding the Fourth Proportional to 1,386,104.55, 2,079,155.65 and 521,700.99

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Solution

The fourth proportional to 1,386,104.55, 2,079,155.65 and 521,700.99 is: 782,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,104.55 : 2,079,155.65 = 521,700.99 : x
  2. Step 2: Convert to fraction form
    1,386,104.55/2,079,155.65 = 521,700.99/x
  3. Step 3: Cross multiply
    1,386,104.55x = 2,079,155.65 × 521,700.99
  4. Step 4: Simplify right side
    1,386,104.55x = 1,084,697,560,969.09
  5. Step 5: Solve for x
    x = 1,084,697,560,969.09/1,386,104.55
  6. Step 6: Final answer
    x = 782,551.04

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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.