Home / 920,126.80-1,380,233.40-289,061.20

Finding the Fourth Proportional to 920,126.80, 1,380,233.40 and 289,061.20

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Solution

The fourth proportional to 920,126.80, 1,380,233.40 and 289,061.20 is: 433,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,126.80 : 1,380,233.40 = 289,061.20 : x
  2. Step 2: Convert to fraction form
    920,126.80/1,380,233.40 = 289,061.20/x
  3. Step 3: Cross multiply
    920,126.80x = 1,380,233.40 × 289,061.20
  4. Step 4: Simplify right side
    920,126.80x = 398,971,922,884.08
  5. Step 5: Solve for x
    x = 398,971,922,884.08/920,126.80
  6. Step 6: Final answer
    x = 433,605.37

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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.