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Finding the Fourth Proportional to 806,654.69, 1,210,730.16 and 407,575.71

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Solution

The fourth proportional to 806,654.69, 1,210,730.16 and 407,575.71 is: 611,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,654.69 : 1,210,730.16 = 407,575.71 : x
  2. Step 2: Convert to fraction form
    806,654.69/1,210,730.16 = 407,575.71/x
  3. Step 3: Cross multiply
    806,654.69x = 1,210,730.16 × 407,575.71
  4. Step 4: Simplify right side
    806,654.69x = 493,464,204,580.41
  5. Step 5: Solve for x
    x = 493,464,204,580.41/806,654.69
  6. Step 6: Final answer
    x = 611,741.57

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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.