Home / 851,703.40-1,277,069.10-319,241.80

Finding the Fourth Proportional to 851,703.40, 1,277,069.10 and 319,241.80

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Solution

The fourth proportional to 851,703.40, 1,277,069.10 and 319,241.80 is: 478,680.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,703.40 : 1,277,069.10 = 319,241.80 : x
  2. Step 2: Convert to fraction form
    851,703.40/1,277,069.10 = 319,241.80/x
  3. Step 3: Cross multiply
    851,703.40x = 1,277,069.10 × 319,241.80
  4. Step 4: Simplify right side
    851,703.40x = 407,693,838,208.38
  5. Step 5: Solve for x
    x = 407,693,838,208.38/851,703.40
  6. Step 6: Final answer
    x = 478,680.53

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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.