Home / 1,043,143.20-1,565,751.60-511,264.80

Finding the Fourth Proportional to 1,043,143.20, 1,565,751.60 and 511,264.80

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Solution

The fourth proportional to 1,043,143.20, 1,565,751.60 and 511,264.80 is: 767,405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043,143.20 : 1,565,751.60 = 511,264.80 : x
  2. Step 2: Convert to fraction form
    1,043,143.20/1,565,751.60 = 511,264.80/x
  3. Step 3: Cross multiply
    1,043,143.20x = 1,565,751.60 × 511,264.80
  4. Step 4: Simplify right side
    1,043,143.20x = 800,513,678,623.68
  5. Step 5: Solve for x
    x = 800,513,678,623.68/1,043,143.20
  6. Step 6: Final answer
    x = 767,405.36

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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.