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Finding the Fourth Proportional to 525,851.70, 788,777.55 and 494,747.70

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Solution

The fourth proportional to 525,851.70, 788,777.55 and 494,747.70 is: 742,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,851.70 : 788,777.55 = 494,747.70 : x
  2. Step 2: Convert to fraction form
    525,851.70/788,777.55 = 494,747.70/x
  3. Step 3: Cross multiply
    525,851.70x = 788,777.55 × 494,747.70
  4. Step 4: Simplify right side
    525,851.70x = 390,245,878,674.14
  5. Step 5: Solve for x
    x = 390,245,878,674.14/525,851.70
  6. Step 6: Final answer
    x = 742,121.55

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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.