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Finding the Fourth Proportional to 661,351.48, 992,433.32 and 525,612.58

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Solution

The fourth proportional to 661,351.48, 992,433.32 and 525,612.58 is: 788,741.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,351.48 : 992,433.32 = 525,612.58 : x
  2. Step 2: Convert to fraction form
    661,351.48/992,433.32 = 525,612.58/x
  3. Step 3: Cross multiply
    661,351.48x = 992,433.32 × 525,612.58
  4. Step 4: Simplify right side
    661,351.48x = 521,635,437,803.17
  5. Step 5: Solve for x
    x = 521,635,437,803.17/661,351.48
  6. Step 6: Final answer
    x = 788,741.62

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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.