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Finding the Fourth Proportional to 586,026.28, 808,620.42 and 385,071.40

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Solution

The fourth proportional to 586,026.28, 808,620.42 and 385,071.40 is: 531,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,026.28 : 808,620.42 = 385,071.40 : x
  2. Step 2: Convert to fraction form
    586,026.28/808,620.42 = 385,071.40/x
  3. Step 3: Cross multiply
    586,026.28x = 808,620.42 × 385,071.40
  4. Step 4: Simplify right side
    586,026.28x = 311,376,597,197.99
  5. Step 5: Solve for x
    x = 311,376,597,197.99/586,026.28
  6. Step 6: Final answer
    x = 531,335.55

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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.