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Finding the Fourth Proportional to 508,342.02, 701,530.65 and 307,099.14

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Solution

The fourth proportional to 508,342.02, 701,530.65 and 307,099.14 is: 423,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,342.02 : 701,530.65 = 307,099.14 : x
  2. Step 2: Convert to fraction form
    508,342.02/701,530.65 = 307,099.14/x
  3. Step 3: Cross multiply
    508,342.02x = 701,530.65 × 307,099.14
  4. Step 4: Simplify right side
    508,342.02x = 215,439,459,298.64
  5. Step 5: Solve for x
    x = 215,439,459,298.64/508,342.02
  6. Step 6: Final answer
    x = 423,808.09

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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.