Home / 920,063.88-1,380,225.42-320,937.66

Finding the Fourth Proportional to 920,063.88, 1,380,225.42 and 320,937.66

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Solution

The fourth proportional to 920,063.88, 1,380,225.42 and 320,937.66 is: 481,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,063.88 : 1,380,225.42 = 320,937.66 : x
  2. Step 2: Convert to fraction form
    920,063.88/1,380,225.42 = 320,937.66/x
  3. Step 3: Cross multiply
    920,063.88x = 1,380,225.42 × 320,937.66
  4. Step 4: Simplify right side
    920,063.88x = 442,966,316,567.32
  5. Step 5: Solve for x
    x = 442,966,316,567.32/920,063.88
  6. Step 6: Final answer
    x = 481,451.70

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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.