Home / 1,009,197.90-1,513,357.56-289,380.78

Finding the Fourth Proportional to 1,009,197.90, 1,513,357.56 and 289,380.78

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Solution

The fourth proportional to 1,009,197.90, 1,513,357.56 and 289,380.78 is: 433,945.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,197.90 : 1,513,357.56 = 289,380.78 : x
  2. Step 2: Convert to fraction form
    1,009,197.90/1,513,357.56 = 289,380.78/x
  3. Step 3: Cross multiply
    1,009,197.90x = 1,513,357.56 × 289,380.78
  4. Step 4: Simplify right side
    1,009,197.90x = 437,936,591,131.70
  5. Step 5: Solve for x
    x = 437,936,591,131.70/1,009,197.90
  6. Step 6: Final answer
    x = 433,945.21

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1.5x scale

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.