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Finding the Fourth Proportional to 478,339.55, 717,510.23 and 449,110.29

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Solution

The fourth proportional to 478,339.55, 717,510.23 and 449,110.29 is: 673,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,339.55 : 717,510.23 = 449,110.29 : x
  2. Step 2: Convert to fraction form
    478,339.55/717,510.23 = 449,110.29/x
  3. Step 3: Cross multiply
    478,339.55x = 717,510.23 × 449,110.29
  4. Step 4: Simplify right side
    478,339.55x = 322,241,225,227.72
  5. Step 5: Solve for x
    x = 322,241,225,227.72/478,339.55
  6. Step 6: Final answer
    x = 673,666.29

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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.