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Finding the Fourth Proportional to 663,416.04, 915,293.91 and 540,697.41

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Solution

The fourth proportional to 663,416.04, 915,293.91 and 540,697.41 is: 745,982.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,416.04 : 915,293.91 = 540,697.41 : x
  2. Step 2: Convert to fraction form
    663,416.04/915,293.91 = 540,697.41/x
  3. Step 3: Cross multiply
    663,416.04x = 915,293.91 × 540,697.41
  4. Step 4: Simplify right side
    663,416.04x = 494,897,048,553.39
  5. Step 5: Solve for x
    x = 494,897,048,553.39/663,416.04
  6. Step 6: Final answer
    x = 745,982.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.