Home / 702,939.10-1,051,951.05-643,956.70

Finding the Fourth Proportional to 702,939.10, 1,051,951.05 and 643,956.70

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Solution

The fourth proportional to 702,939.10, 1,051,951.05 and 643,956.70 is: 963,683.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,939.10 : 1,051,951.05 = 643,956.70 : x
  2. Step 2: Convert to fraction form
    702,939.10/1,051,951.05 = 643,956.70/x
  3. Step 3: Cross multiply
    702,939.10x = 1,051,951.05 × 643,956.70
  4. Step 4: Simplify right side
    702,939.10x = 677,410,926,719.54
  5. Step 5: Solve for x
    x = 677,410,926,719.54/702,939.10
  6. Step 6: Final answer
    x = 963,683.66

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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.