Home / 711,787.28-982,266.26-389,497.28

Finding the Fourth Proportional to 711,787.28, 982,266.26 and 389,497.28

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Solution

The fourth proportional to 711,787.28, 982,266.26 and 389,497.28 is: 537,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,787.28 : 982,266.26 = 389,497.28 : x
  2. Step 2: Convert to fraction form
    711,787.28/982,266.26 = 389,497.28/x
  3. Step 3: Cross multiply
    711,787.28x = 982,266.26 × 389,497.28
  4. Step 4: Simplify right side
    711,787.28x = 382,590,029,646.96
  5. Step 5: Solve for x
    x = 382,590,029,646.96/711,787.28
  6. Step 6: Final answer
    x = 537,506.14

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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.