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Finding the Fourth Proportional to 694,425.44, 958,334.40 and 407,943.02

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Solution

The fourth proportional to 694,425.44, 958,334.40 and 407,943.02 is: 562,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,425.44 : 958,334.40 = 407,943.02 : x
  2. Step 2: Convert to fraction form
    694,425.44/958,334.40 = 407,943.02/x
  3. Step 3: Cross multiply
    694,425.44x = 958,334.40 × 407,943.02
  4. Step 4: Simplify right side
    694,425.44x = 390,945,829,305.89
  5. Step 5: Solve for x
    x = 390,945,829,305.89/694,425.44
  6. Step 6: Final answer
    x = 562,977.40

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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.