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Finding the Fourth Proportional to 602,978.43, 903,285.18 and 349,726.80

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Solution

The fourth proportional to 602,978.43, 903,285.18 and 349,726.80 is: 523,904.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,978.43 : 903,285.18 = 349,726.80 : x
  2. Step 2: Convert to fraction form
    602,978.43/903,285.18 = 349,726.80/x
  3. Step 3: Cross multiply
    602,978.43x = 903,285.18 × 349,726.80
  4. Step 4: Simplify right side
    602,978.43x = 315,903,035,488.82
  5. Step 5: Solve for x
    x = 315,903,035,488.82/602,978.43
  6. Step 6: Final answer
    x = 523,904.37

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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.