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Finding the Fourth Proportional to 643,707.90, 966,022.65 and 362,927.10

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Solution

The fourth proportional to 643,707.90, 966,022.65 and 362,927.10 is: 544,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,707.90 : 966,022.65 = 362,927.10 : x
  2. Step 2: Convert to fraction form
    643,707.90/966,022.65 = 362,927.10/x
  3. Step 3: Cross multiply
    643,707.90x = 966,022.65 × 362,927.10
  4. Step 4: Simplify right side
    643,707.90x = 350,595,798,898.82
  5. Step 5: Solve for x
    x = 350,595,798,898.82/643,707.90
  6. Step 6: Final answer
    x = 544,650.45

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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.