Home / 961,331.70-1,442,852.94-512,423.22

Finding the Fourth Proportional to 961,331.70, 1,442,852.94 and 512,423.22

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Solution

The fourth proportional to 961,331.70, 1,442,852.94 and 512,423.22 is: 769,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,331.70 : 1,442,852.94 = 512,423.22 : x
  2. Step 2: Convert to fraction form
    961,331.70/1,442,852.94 = 512,423.22/x
  3. Step 3: Cross multiply
    961,331.70x = 1,442,852.94 × 512,423.22
  4. Step 4: Simplify right side
    961,331.70x = 739,351,349,501.27
  5. Step 5: Solve for x
    x = 739,351,349,501.27/961,331.70
  6. Step 6: Final answer
    x = 769,090.78

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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.