Home / 657,708.55-986,590.26-208,419.48

Finding the Fourth Proportional to 657,708.55, 986,590.26 and 208,419.48

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Solution

The fourth proportional to 657,708.55, 986,590.26 and 208,419.48 is: 312,637.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,708.55 : 986,590.26 = 208,419.48 : x
  2. Step 2: Convert to fraction form
    657,708.55/986,590.26 = 208,419.48/x
  3. Step 3: Cross multiply
    657,708.55x = 986,590.26 × 208,419.48
  4. Step 4: Simplify right side
    657,708.55x = 205,624,628,962.27
  5. Step 5: Solve for x
    x = 205,624,628,962.27/657,708.55
  6. Step 6: Final answer
    x = 312,637.91

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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.