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Finding the Fourth Proportional to 671,298.92, 926,322.70 and 380,817.94

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Solution

The fourth proportional to 671,298.92, 926,322.70 and 380,817.94 is: 525,489.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,298.92 : 926,322.70 = 380,817.94 : x
  2. Step 2: Convert to fraction form
    671,298.92/926,322.70 = 380,817.94/x
  3. Step 3: Cross multiply
    671,298.92x = 926,322.70 × 380,817.94
  4. Step 4: Simplify right side
    671,298.92x = 352,760,302,389.24
  5. Step 5: Solve for x
    x = 352,760,302,389.24/671,298.92
  6. Step 6: Final answer
    x = 525,489.16

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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.