Home / 1,720,281.70-2,580,422.55-1,415,851.30

Finding the Fourth Proportional to 1,720,281.70, 2,580,422.55 and 1,415,851.30

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Solution

The fourth proportional to 1,720,281.70, 2,580,422.55 and 1,415,851.30 is: 2,123,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,281.70 : 2,580,422.55 = 1,415,851.30 : x
  2. Step 2: Convert to fraction form
    1,720,281.70/2,580,422.55 = 1,415,851.30/x
  3. Step 3: Cross multiply
    1,720,281.70x = 2,580,422.55 × 1,415,851.30
  4. Step 4: Simplify right side
    1,720,281.70x = 3,653,494,621,966.82
  5. Step 5: Solve for x
    x = 3,653,494,621,966.82/1,720,281.70
  6. Step 6: Final answer
    x = 2,123,776.95

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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.