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Finding the Fourth Proportional to 679,484.97, 937,613.07 and 407,563.92

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Solution

The fourth proportional to 679,484.97, 937,613.07 and 407,563.92 is: 562,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,484.97 : 937,613.07 = 407,563.92 : x
  2. Step 2: Convert to fraction form
    679,484.97/937,613.07 = 407,563.92/x
  3. Step 3: Cross multiply
    679,484.97x = 937,613.07 × 407,563.92
  4. Step 4: Simplify right side
    679,484.97x = 382,137,258,252.43
  5. Step 5: Solve for x
    x = 382,137,258,252.43/679,484.97
  6. Step 6: Final answer
    x = 562,392.51

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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.