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Finding the Fourth Proportional to 458,598.17, 688,814.01 and 276,592.79

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Solution

The fourth proportional to 458,598.17, 688,814.01 and 276,592.79 is: 415,442.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,598.17 : 688,814.01 = 276,592.79 : x
  2. Step 2: Convert to fraction form
    458,598.17/688,814.01 = 276,592.79/x
  3. Step 3: Cross multiply
    458,598.17x = 688,814.01 × 276,592.79
  4. Step 4: Simplify right side
    458,598.17x = 190,520,990,539.02
  5. Step 5: Solve for x
    x = 190,520,990,539.02/458,598.17
  6. Step 6: Final answer
    x = 415,442.11

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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.