Home / 711,995.19-982,551.70-389,702.46

Finding the Fourth Proportional to 711,995.19, 982,551.70 and 389,702.46

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Solution

The fourth proportional to 711,995.19, 982,551.70 and 389,702.46 is: 537,788.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,995.19 : 982,551.70 = 389,702.46 : x
  2. Step 2: Convert to fraction form
    711,995.19/982,551.70 = 389,702.46/x
  3. Step 3: Cross multiply
    711,995.19x = 982,551.70 × 389,702.46
  4. Step 4: Simplify right side
    711,995.19x = 382,902,814,567.18
  5. Step 5: Solve for x
    x = 382,902,814,567.18/711,995.19
  6. Step 6: Final answer
    x = 537,788.49

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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.