Home / 681,082.81-939,859.54-375,152.60

Finding the Fourth Proportional to 681,082.81, 939,859.54 and 375,152.60

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Solution

The fourth proportional to 681,082.81, 939,859.54 and 375,152.60 is: 517,691.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,082.81 : 939,859.54 = 375,152.60 : x
  2. Step 2: Convert to fraction form
    681,082.81/939,859.54 = 375,152.60/x
  3. Step 3: Cross multiply
    681,082.81x = 939,859.54 × 375,152.60
  4. Step 4: Simplify right side
    681,082.81x = 352,590,744,428.63
  5. Step 5: Solve for x
    x = 352,590,744,428.63/681,082.81
  6. Step 6: Final answer
    x = 517,691.45

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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.