Home / 688,941.70-950,743.24-378,864.28

Finding the Fourth Proportional to 688,941.70, 950,743.24 and 378,864.28

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Solution

The fourth proportional to 688,941.70, 950,743.24 and 378,864.28 is: 522,834.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,941.70 : 950,743.24 = 378,864.28 : x
  2. Step 2: Convert to fraction form
    688,941.70/950,743.24 = 378,864.28/x
  3. Step 3: Cross multiply
    688,941.70x = 950,743.24 × 378,864.28
  4. Step 4: Simplify right side
    688,941.70x = 360,202,653,087.47
  5. Step 5: Solve for x
    x = 360,202,653,087.47/688,941.70
  6. Step 6: Final answer
    x = 522,834.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.