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Finding the Fourth Proportional to 871,649.88, 1,306,725.90 and 302,957.10

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Solution

The fourth proportional to 871,649.88, 1,306,725.90 and 302,957.10 is: 454,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,649.88 : 1,306,725.90 = 302,957.10 : x
  2. Step 2: Convert to fraction form
    871,649.88/1,306,725.90 = 302,957.10/x
  3. Step 3: Cross multiply
    871,649.88x = 1,306,725.90 × 302,957.10
  4. Step 4: Simplify right side
    871,649.88x = 395,881,889,158.89
  5. Step 5: Solve for x
    x = 395,881,889,158.89/871,649.88
  6. Step 6: Final answer
    x = 454,175.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.