Home / 723,351.40-1,085,027.10-686,487.40

Finding the Fourth Proportional to 723,351.40, 1,085,027.10 and 686,487.40

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Solution

The fourth proportional to 723,351.40, 1,085,027.10 and 686,487.40 is: 1,029,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,351.40 : 1,085,027.10 = 686,487.40 : x
  2. Step 2: Convert to fraction form
    723,351.40/1,085,027.10 = 686,487.40/x
  3. Step 3: Cross multiply
    723,351.40x = 1,085,027.10 × 686,487.40
  4. Step 4: Simplify right side
    723,351.40x = 744,857,432,808.54
  5. Step 5: Solve for x
    x = 744,857,432,808.54/723,351.40
  6. Step 6: Final answer
    x = 1,029,731.10

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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.