Home / 849,388.20-1,274,088.78-310,031.10

Finding the Fourth Proportional to 849,388.20, 1,274,088.78 and 310,031.10

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Solution

The fourth proportional to 849,388.20, 1,274,088.78 and 310,031.10 is: 465,049.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,388.20 : 1,274,088.78 = 310,031.10 : x
  2. Step 2: Convert to fraction form
    849,388.20/1,274,088.78 = 310,031.10/x
  3. Step 3: Cross multiply
    849,388.20x = 1,274,088.78 × 310,031.10
  4. Step 4: Simplify right side
    849,388.20x = 395,007,145,961.06
  5. Step 5: Solve for x
    x = 395,007,145,961.06/849,388.20
  6. Step 6: Final answer
    x = 465,049.02

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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.