Home / 631,648.04-871,685.70-345,180.20

Finding the Fourth Proportional to 631,648.04, 871,685.70 and 345,180.20

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Solution

The fourth proportional to 631,648.04, 871,685.70 and 345,180.20 is: 476,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,648.04 : 871,685.70 = 345,180.20 : x
  2. Step 2: Convert to fraction form
    631,648.04/871,685.70 = 345,180.20/x
  3. Step 3: Cross multiply
    631,648.04x = 871,685.70 × 345,180.20
  4. Step 4: Simplify right side
    631,648.04x = 300,888,644,263.14
  5. Step 5: Solve for x
    x = 300,888,644,263.14/631,648.04
  6. Step 6: Final answer
    x = 476,354.91

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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.