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Finding the Fourth Proportional to 478,954.32, 717,343.96 and 371,475.44

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Solution

The fourth proportional to 478,954.32, 717,343.96 and 371,475.44 is: 556,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,954.32 : 717,343.96 = 371,475.44 : x
  2. Step 2: Convert to fraction form
    478,954.32/717,343.96 = 371,475.44/x
  3. Step 3: Cross multiply
    478,954.32x = 717,343.96 × 371,475.44
  4. Step 4: Simplify right side
    478,954.32x = 266,475,663,172.34
  5. Step 5: Solve for x
    x = 266,475,663,172.34/478,954.32
  6. Step 6: Final answer
    x = 556,369.68

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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.