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Finding the Fourth Proportional to 525,661.60, 788,686.80 and 506,221.60

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Solution

The fourth proportional to 525,661.60, 788,686.80 and 506,221.60 is: 759,519.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,661.60 : 788,686.80 = 506,221.60 : x
  2. Step 2: Convert to fraction form
    525,661.60/788,686.80 = 506,221.60/x
  3. Step 3: Cross multiply
    525,661.60x = 788,686.80 × 506,221.60
  4. Step 4: Simplify right side
    525,661.60x = 399,250,293,794.88
  5. Step 5: Solve for x
    x = 399,250,293,794.88/525,661.60
  6. Step 6: Final answer
    x = 759,519.61

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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.