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Finding the Fourth Proportional to 722,671.64, 997,206.24 and 400,301.84

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Solution

The fourth proportional to 722,671.64, 997,206.24 and 400,301.84 is: 552,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,671.64 : 997,206.24 = 400,301.84 : x
  2. Step 2: Convert to fraction form
    722,671.64/997,206.24 = 400,301.84/x
  3. Step 3: Cross multiply
    722,671.64x = 997,206.24 × 400,301.84
  4. Step 4: Simplify right side
    722,671.64x = 399,183,492,731.48
  5. Step 5: Solve for x
    x = 399,183,492,731.48/722,671.64
  6. Step 6: Final answer
    x = 552,371.88

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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.