Home / 1,377,260.10-2,065,890.15-430,629.30

Finding the Fourth Proportional to 1,377,260.10, 2,065,890.15 and 430,629.30

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Solution

The fourth proportional to 1,377,260.10, 2,065,890.15 and 430,629.30 is: 645,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,260.10 : 2,065,890.15 = 430,629.30 : x
  2. Step 2: Convert to fraction form
    1,377,260.10/2,065,890.15 = 430,629.30/x
  3. Step 3: Cross multiply
    1,377,260.10x = 2,065,890.15 × 430,629.30
  4. Step 4: Simplify right side
    1,377,260.10x = 889,632,829,171.40
  5. Step 5: Solve for x
    x = 889,632,829,171.40/1,377,260.10
  6. Step 6: Final answer
    x = 645,943.95

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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.