Home / 920,080.80-1,380,176.31-288,994.59

Finding the Fourth Proportional to 920,080.80, 1,380,176.31 and 288,994.59

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Solution

The fourth proportional to 920,080.80, 1,380,176.31 and 288,994.59 is: 433,509.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,080.80 : 1,380,176.31 = 288,994.59 : x
  2. Step 2: Convert to fraction form
    920,080.80/1,380,176.31 = 288,994.59/x
  3. Step 3: Cross multiply
    920,080.80x = 1,380,176.31 × 288,994.59
  4. Step 4: Simplify right side
    920,080.80x = 398,863,486,836.16
  5. Step 5: Solve for x
    x = 398,863,486,836.16/920,080.80
  6. Step 6: Final answer
    x = 433,509.19

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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.