Home / 694,667.40-958,829.58-408,279.48

Finding the Fourth Proportional to 694,667.40, 958,829.58 and 408,279.48

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Solution

The fourth proportional to 694,667.40, 958,829.58 and 408,279.48 is: 563,536.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,667.40 : 958,829.58 = 408,279.48 : x
  2. Step 2: Convert to fraction form
    694,667.40/958,829.58 = 408,279.48/x
  3. Step 3: Cross multiply
    694,667.40x = 958,829.58 × 408,279.48
  4. Step 4: Simplify right side
    694,667.40x = 391,470,442,331.02
  5. Step 5: Solve for x
    x = 391,470,442,331.02/694,667.40
  6. Step 6: Final answer
    x = 563,536.51

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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.