Home / 1,287,570.80-1,931,356.20-341,037.20

Finding the Fourth Proportional to 1,287,570.80, 1,931,356.20 and 341,037.20

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Solution

The fourth proportional to 1,287,570.80, 1,931,356.20 and 341,037.20 is: 511,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,570.80 : 1,931,356.20 = 341,037.20 : x
  2. Step 2: Convert to fraction form
    1,287,570.80/1,931,356.20 = 341,037.20/x
  3. Step 3: Cross multiply
    1,287,570.80x = 1,931,356.20 × 341,037.20
  4. Step 4: Simplify right side
    1,287,570.80x = 658,664,310,650.64
  5. Step 5: Solve for x
    x = 658,664,310,650.64/1,287,570.80
  6. Step 6: Final answer
    x = 511,555.80

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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.