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Finding the Fourth Proportional to 525,728.34, 788,564.16 and 300,948.48

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Solution

The fourth proportional to 525,728.34, 788,564.16 and 300,948.48 is: 451,406.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,728.34 : 788,564.16 = 300,948.48 : x
  2. Step 2: Convert to fraction form
    525,728.34/788,564.16 = 300,948.48/x
  3. Step 3: Cross multiply
    525,728.34x = 788,564.16 × 300,948.48
  4. Step 4: Simplify right side
    525,728.34x = 237,317,185,334.48
  5. Step 5: Solve for x
    x = 237,317,185,334.48/525,728.34
  6. Step 6: Final answer
    x = 451,406.49

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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.