Home / 715,083.84-986,812.08-392,792.94

Finding the Fourth Proportional to 715,083.84, 986,812.08 and 392,792.94

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Solution

The fourth proportional to 715,083.84, 986,812.08 and 392,792.94 is: 542,052.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,083.84 : 986,812.08 = 392,792.94 : x
  2. Step 2: Convert to fraction form
    715,083.84/986,812.08 = 392,792.94/x
  3. Step 3: Cross multiply
    715,083.84x = 986,812.08 × 392,792.94
  4. Step 4: Simplify right side
    715,083.84x = 387,612,818,130.72
  5. Step 5: Solve for x
    x = 387,612,818,130.72/715,083.84
  6. Step 6: Final answer
    x = 542,052.27

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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.