Home / 784,036.70-1,175,021.68-310,463.72

Finding the Fourth Proportional to 784,036.70, 1,175,021.68 and 310,463.72

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Solution

The fourth proportional to 784,036.70, 1,175,021.68 and 310,463.72 is: 465,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,036.70 : 1,175,021.68 = 310,463.72 : x
  2. Step 2: Convert to fraction form
    784,036.70/1,175,021.68 = 310,463.72/x
  3. Step 3: Cross multiply
    784,036.70x = 1,175,021.68 × 310,463.72
  4. Step 4: Simplify right side
    784,036.70x = 364,801,601,853.45
  5. Step 5: Solve for x
    x = 364,801,601,853.45/784,036.70
  6. Step 6: Final answer
    x = 465,286.39

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1.5x scale

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.