Home / 1,308,821.28-1,963,174.80-410,242.50

Finding the Fourth Proportional to 1,308,821.28, 1,963,174.80 and 410,242.50

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Solution

The fourth proportional to 1,308,821.28, 1,963,174.80 and 410,242.50 is: 615,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,821.28 : 1,963,174.80 = 410,242.50 : x
  2. Step 2: Convert to fraction form
    1,308,821.28/1,963,174.80 = 410,242.50/x
  3. Step 3: Cross multiply
    1,308,821.28x = 1,963,174.80 × 410,242.50
  4. Step 4: Simplify right side
    1,308,821.28x = 805,377,737,889
  5. Step 5: Solve for x
    x = 805,377,737,889/1,308,821.28
  6. Step 6: Final answer
    x = 615,345.85

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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.