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Finding the Fourth Proportional to 507,981.48, 761,816.66 and 351,217.32

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Solution

The fourth proportional to 507,981.48, 761,816.66 and 351,217.32 is: 526,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,981.48 : 761,816.66 = 351,217.32 : x
  2. Step 2: Convert to fraction form
    507,981.48/761,816.66 = 351,217.32/x
  3. Step 3: Cross multiply
    507,981.48x = 761,816.66 × 351,217.32
  4. Step 4: Simplify right side
    507,981.48x = 267,563,205,656.55
  5. Step 5: Solve for x
    x = 267,563,205,656.55/507,981.48
  6. Step 6: Final answer
    x = 526,718.43

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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.