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Finding the Fourth Proportional to 519,594, 717,039.72 and 281,130

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Solution

The fourth proportional to 519,594, 717,039.72 and 281,130 is: 387,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,594 : 717,039.72 = 281,130 : x
  2. Step 2: Convert to fraction form
    519,594/717,039.72 = 281,130/x
  3. Step 3: Cross multiply
    519,594x = 717,039.72 × 281,130
  4. Step 4: Simplify right side
    519,594x = 201,581,376,483.60
  5. Step 5: Solve for x
    x = 201,581,376,483.60/519,594
  6. Step 6: Final answer
    x = 387,959.40

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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.