Home / 631,531.47-871,503.26-345,045.41

Finding the Fourth Proportional to 631,531.47, 871,503.26 and 345,045.41

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Solution

The fourth proportional to 631,531.47, 871,503.26 and 345,045.41 is: 476,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,531.47 : 871,503.26 = 345,045.41 : x
  2. Step 2: Convert to fraction form
    631,531.47/871,503.26 = 345,045.41/x
  3. Step 3: Cross multiply
    631,531.47x = 871,503.26 × 345,045.41
  4. Step 4: Simplify right side
    631,531.47x = 300,708,199,663.04
  5. Step 5: Solve for x
    x = 300,708,199,663.04/631,531.47
  6. Step 6: Final answer
    x = 476,157.11

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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.