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Finding the Fourth Proportional to 525.90, 782.70 and 501.60

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Solution

The fourth proportional to 525.90, 782.70 and 501.60 is: 746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.90 : 782.70 = 501.60 : x
  2. Step 2: Convert to fraction form
    525.90/782.70 = 501.60/x
  3. Step 3: Cross multiply
    525.90x = 782.70 × 501.60
  4. Step 4: Simplify right side
    525.90x = 392,602.32
  5. Step 5: Solve for x
    x = 392,602.32/525.90
  6. Step 6: Final answer
    x = 746.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.