Home / 791,160-1,186,888.80-317,883.20

Finding the Fourth Proportional to 791,160, 1,186,888.80 and 317,883.20

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Solution

The fourth proportional to 791,160, 1,186,888.80 and 317,883.20 is: 476,884.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,160 : 1,186,888.80 = 317,883.20 : x
  2. Step 2: Convert to fraction form
    791,160/1,186,888.80 = 317,883.20/x
  3. Step 3: Cross multiply
    791,160x = 1,186,888.80 × 317,883.20
  4. Step 4: Simplify right side
    791,160x = 377,292,009,788.16
  5. Step 5: Solve for x
    x = 377,292,009,788.16/791,160
  6. Step 6: Final answer
    x = 476,884.59

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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.