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Finding the Fourth Proportional to 529,048.86, 788,528.96 and 499,160.22

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Solution

The fourth proportional to 529,048.86, 788,528.96 and 499,160.22 is: 743,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,048.86 : 788,528.96 = 499,160.22 : x
  2. Step 2: Convert to fraction form
    529,048.86/788,528.96 = 499,160.22/x
  3. Step 3: Cross multiply
    529,048.86x = 788,528.96 × 499,160.22
  4. Step 4: Simplify right side
    529,048.86x = 393,602,286,654.17
  5. Step 5: Solve for x
    x = 393,602,286,654.17/529,048.86
  6. Step 6: Final answer
    x = 743,980.97

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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.