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Finding the Fourth Proportional to 546,888.70, 820,333.05 and 489,315.93

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Solution

The fourth proportional to 546,888.70, 820,333.05 and 489,315.93 is: 733,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,888.70 : 820,333.05 = 489,315.93 : x
  2. Step 2: Convert to fraction form
    546,888.70/820,333.05 = 489,315.93/x
  3. Step 3: Cross multiply
    546,888.70x = 820,333.05 × 489,315.93
  4. Step 4: Simplify right side
    546,888.70x = 401,402,029,270.49
  5. Step 5: Solve for x
    x = 401,402,029,270.49/546,888.70
  6. Step 6: Final answer
    x = 733,973.90

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Similar ratio
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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.