Home / 920,308.73-1,380,526.16-312,849.85

Finding the Fourth Proportional to 920,308.73, 1,380,526.16 and 312,849.85

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Solution

The fourth proportional to 920,308.73, 1,380,526.16 and 312,849.85 is: 469,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,308.73 : 1,380,526.16 = 312,849.85 : x
  2. Step 2: Convert to fraction form
    920,308.73/1,380,526.16 = 312,849.85/x
  3. Step 3: Cross multiply
    920,308.73x = 1,380,526.16 × 312,849.85
  4. Step 4: Simplify right side
    920,308.73x = 431,897,404,412.62
  5. Step 5: Solve for x
    x = 431,897,404,412.62/920,308.73
  6. Step 6: Final answer
    x = 469,296.22

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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.