Home / 712,095.29-982,694.15-389,835.38

Finding the Fourth Proportional to 712,095.29, 982,694.15 and 389,835.38

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Solution

The fourth proportional to 712,095.29, 982,694.15 and 389,835.38 is: 537,974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,095.29 : 982,694.15 = 389,835.38 : x
  2. Step 2: Convert to fraction form
    712,095.29/982,694.15 = 389,835.38/x
  3. Step 3: Cross multiply
    712,095.29x = 982,694.15 × 389,835.38
  4. Step 4: Simplify right side
    712,095.29x = 383,088,943,450.15
  5. Step 5: Solve for x
    x = 383,088,943,450.15/712,095.29
  6. Step 6: Final answer
    x = 537,974.27

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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.