Home / 711,980.46-982,495.19-389,628.29

Finding the Fourth Proportional to 711,980.46, 982,495.19 and 389,628.29

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Solution

The fourth proportional to 711,980.46, 982,495.19 and 389,628.29 is: 537,666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,980.46 : 982,495.19 = 389,628.29 : x
  2. Step 2: Convert to fraction form
    711,980.46/982,495.19 = 389,628.29/x
  3. Step 3: Cross multiply
    711,980.46x = 982,495.19 × 389,628.29
  4. Step 4: Simplify right side
    711,980.46x = 382,807,913,952.31
  5. Step 5: Solve for x
    x = 382,807,913,952.31/711,980.46
  6. Step 6: Final answer
    x = 537,666.32

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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.