Home / 920,083.80-1,380,180.81-288,997.59

Finding the Fourth Proportional to 920,083.80, 1,380,180.81 and 288,997.59

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Solution

The fourth proportional to 920,083.80, 1,380,180.81 and 288,997.59 is: 433,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,083.80 : 1,380,180.81 = 288,997.59 : x
  2. Step 2: Convert to fraction form
    920,083.80/1,380,180.81 = 288,997.59/x
  3. Step 3: Cross multiply
    920,083.80x = 1,380,180.81 × 288,997.59
  4. Step 4: Simplify right side
    920,083.80x = 398,868,927,854.25
  5. Step 5: Solve for x
    x = 398,868,927,854.25/920,083.80
  6. Step 6: Final answer
    x = 433,513.70

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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.