Home / 711,605.57-982,026.75-389,321.06

Finding the Fourth Proportional to 711,605.57, 982,026.75 and 389,321.06

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Solution

The fourth proportional to 711,605.57, 982,026.75 and 389,321.06 is: 537,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,605.57 : 982,026.75 = 389,321.06 : x
  2. Step 2: Convert to fraction form
    711,605.57/982,026.75 = 389,321.06/x
  3. Step 3: Cross multiply
    711,605.57x = 982,026.75 × 389,321.06
  4. Step 4: Simplify right side
    711,605.57x = 382,323,690,348.22
  5. Step 5: Solve for x
    x = 382,323,690,348.22/711,605.57
  6. Step 6: Final answer
    x = 537,269.11

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1.5x scale

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.