Home / 656,703.81-985,111.60-207,304.45

Finding the Fourth Proportional to 656,703.81, 985,111.60 and 207,304.45

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Solution

The fourth proportional to 656,703.81, 985,111.60 and 207,304.45 is: 310,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,703.81 : 985,111.60 = 207,304.45 : x
  2. Step 2: Convert to fraction form
    656,703.81/985,111.60 = 207,304.45/x
  3. Step 3: Cross multiply
    656,703.81x = 985,111.60 × 207,304.45
  4. Step 4: Simplify right side
    656,703.81x = 204,218,017,390.10
  5. Step 5: Solve for x
    x = 204,218,017,390.10/656,703.81
  6. Step 6: Final answer
    x = 310,974.31

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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.