Home / 1,245,644.80-1,868,467.20-947,046.40

Finding the Fourth Proportional to 1,245,644.80, 1,868,467.20 and 947,046.40

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Solution

The fourth proportional to 1,245,644.80, 1,868,467.20 and 947,046.40 is: 1,420,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,644.80 : 1,868,467.20 = 947,046.40 : x
  2. Step 2: Convert to fraction form
    1,245,644.80/1,868,467.20 = 947,046.40/x
  3. Step 3: Cross multiply
    1,245,644.80x = 1,868,467.20 × 947,046.40
  4. Step 4: Simplify right side
    1,245,644.80x = 1,769,525,135,278.08
  5. Step 5: Solve for x
    x = 1,769,525,135,278.08/1,245,644.80
  6. Step 6: Final answer
    x = 1,420,569.60

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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.